{
 "schema_version": "1.0",
 "release": "v2026.10.21",
 "source_record_schema": "1.1",
 "fetched": "2026-10-21T11:31:53Z",
 "sources": {
  "nerc": {
   "base": "http://vocab.nerc.ac.uk/collection/P01/current/",
   "license": "CC BY 4.0"
  },
  "chebi": {
   "base": "https://www.ebi.ac.uk/chebi/backend/api/public/compound/",
   "license": "CC BY 4.0",
   "note": "structures and captions only; ChEBI roles are never stored"
  },
  "rdkit": {
   "version": "2026.03.6"
  },
  "wikipedia": {
   "base": "https://en.wikipedia.org/api/rest_v1/page/summary/",
   "license": "CC BY-SA 4.0"
  }
 },
 "oni": {
  "source": "https://www.cpc.ncep.noaa.gov/data/indices/oni.ascii.txt",
  "license": "Public domain (US Government work)",
  "threshold": 1.5,
  "fetched": "2026-10-21T11:31:53Z",
  "strong_el_nino": [
   1957,
   1958,
   1965,
   1972,
   1973,
   1982,
   1983,
   1992,
   1997,
   1998,
   2009,
   2015,
   2016,
   2023,
   2024,
   2026
  ],
  "latest": [
   "JAS",
   2026,
   2.16
  ]
 },
 "tables": {
  "beaufort": {
   "source": "Wikipedia: Beaufort scale",
   "revision": 1378037123,
   "license": "CC BY-SA 4.0",
   "url": "https://en.wikipedia.org/wiki/Beaufort_scale?oldid=1378037123",
   "units": "m s-1",
   "rows": [
    [
     0,
     0.0,
     0.2,
     "Calm"
    ],
    [
     1,
     0.3,
     1.5,
     "Light air"
    ],
    [
     2,
     1.6,
     3.3,
     "Light breeze"
    ],
    [
     3,
     3.4,
     5.4,
     "Gentle breeze"
    ],
    [
     4,
     5.5,
     7.9,
     "Moderate breeze"
    ],
    [
     5,
     8.0,
     10.7,
     "Fresh breeze"
    ],
    [
     6,
     10.8,
     13.8,
     "Strong breeze"
    ],
    [
     7,
     13.9,
     17.1,
     "Moderate gale, near gale"
    ],
    [
     8,
     17.2,
     20.7,
     "Gale, fresh gale"
    ],
    [
     9,
     20.8,
     24.4,
     "Strong/severe gale"
    ],
    [
     10,
     24.5,
     28.4,
     "Storm, whole gale"
    ],
    [
     11,
     28.5,
     32.6,
     "Violent storm"
    ],
    [
     12,
     32.7,
     null,
     "Hurricane-force"
    ]
   ],
   "knots": [
    [
     0,
     0.0,
     1.0
    ],
    [
     1,
     1.0,
     3.0
    ],
    [
     2,
     4.0,
     6.0
    ],
    [
     3,
     7.0,
     10.0
    ],
    [
     4,
     11.0,
     16.0
    ],
    [
     5,
     17.0,
     21.0
    ],
    [
     6,
     22.0,
     27.0
    ],
    [
     7,
     28.0,
     33.0
    ],
    [
     8,
     34.0,
     40.0
    ],
    [
     9,
     41.0,
     47.0
    ],
    [
     10,
     48.0,
     55.0
    ],
    [
     11,
     56.0,
     63.0
    ],
    [
     12,
     64.0,
     null
    ]
   ]
  }
 },
 "coverage": {
  "keys": 97,
  "nerc": 51,
  "nerc_borrowed": 22,
  "chebi": 59,
  "structures": 92,
  "keys_with_structure": 56,
  "leads": 95,
  "standsin": 22,
  "bjerrum": 4,
  "tables": [
   "beaufort"
  ]
 },
 "skipped": [
  {
   "key": "dic",
   "chebi": "CHEBI:27594",
   "via": "nerc_s27",
   "why": "the carbon atom, not the three-species pool DIC measures (the composition rows carry CO₂, HCO₃⁻ and CO₃²⁻)"
  },
  {
   "key": "dic_rep1",
   "chebi": "CHEBI:27594",
   "via": "nerc_s27",
   "why": "the carbon atom, not the three-species pool DIC measures (the composition rows carry CO₂, HCO₃⁻ and CO₃²⁻)"
  },
  {
   "key": "c14_mean",
   "chebi": "CHEBI:27594",
   "via": "nerc_s27",
   "why": "the carbon atom, not the three-species pool DIC measures (the composition rows carry CO₂, HCO₃⁻ and CO₃²⁻)"
  },
  {
   "key": "c14_dark",
   "chebi": "CHEBI:27594",
   "via": "nerc_s27",
   "why": "the carbon atom, not the three-species pool DIC measures (the composition rows carry CO₂, HCO₃⁻ and CO₃²⁻)"
  },
  {
   "key": "c14_rep1",
   "chebi": "CHEBI:27594",
   "via": "nerc_s27",
   "why": "the carbon atom, not the three-species pool DIC measures (the composition rows carry CO₂, HCO₃⁻ and CO₃²⁻)"
  },
  {
   "key": "c14_rep2",
   "chebi": "CHEBI:27594",
   "via": "nerc_s27",
   "why": "the carbon atom, not the three-species pool DIC measures (the composition rows carry CO₂, HCO₃⁻ and CO₃²⁻)"
  }
 ],
 "measurements": {
  "temperature": {
   "nerc": {
    "p01": "TEMPPR01",
    "uri": "http://vocab.nerc.ac.uk/collection/P01/current/TEMPPR01/",
    "pref": "Temperature of the water body",
    "alt": "Temp",
    "definition": "The degree of hotness of the water column expressed against a standard scale.  Includes both IPTS-68 and ITS-90 scales.",
    "license": "CC BY 4.0",
    "s06": {
     "id": "S0600082",
     "uri": "http://vocab.nerc.ac.uk/collection/S06/current/S0600082/",
     "pref": "Temperature; température",
     "definition": "Degré de chaleur d'un objet, d'une matrice, d'un environnement, exprimé selon une échelle standard.; The degree of hotness of an object, a measurement matrix, an environment, expressed against a standard scale.",
     "same_as": [
      "http://qudt.org/vocab/quantitykind/Temperature"
     ]
    },
    "a05": {
     "id": "EV_SEATEMP",
     "uri": "http://vocab.nerc.ac.uk/collection/A05/current/EV_SEATEMP/",
     "pref": "Temperature",
     "definition": "The temperature of seawater expressed against the International Temperature Scale 1990 (ITS-90) standard.",
     "same_as": [
      "http://vocab.nerc.ac.uk/collection/OD1/current/SEATEMP/"
     ]
    },
    "p02": {
     "id": "TEMP",
     "uri": "http://vocab.nerc.ac.uk/collection/P02/current/TEMP/",
     "pref": "Temperature of the water column",
     "definition": "Temperature parameters in any body of water at any point between the bed and the atmosphere excluding the top few microns sampled by radiometers known as the skin",
     "same_as": [
      "https://www.nodc.noaa.gov/cgi-bin/OAS/prd/datatype/details/373",
      "http://vocab.nerc.ac.uk/collection/OD1/current/SEATEMP/"
     ]
    },
    "p06": {
     "id": "UPAA",
     "uri": "http://vocab.nerc.ac.uk/collection/P06/current/UPAA/",
     "pref": "Degrees Celsius",
     "definition": "Unavailable",
     "same_as": [
      "http://qudt.org/vocab/unit/DEG_C",
      "http://dbpedia.org/resource/Celsius",
      "http://onto.nerc.ac.uk/CAST/153"
     ]
    }
   },
   "face": {
    "kind": "scale",
    "face_of": null,
    "source": "record"
   },
   "wikipedia": [
    {
     "title": "Sea surface temperature",
     "revision": 1374459881,
     "license": "CC BY-SA 4.0",
     "extract": "Sea surface temperature is the temperature of ocean water close to the surface. The exact meaning of surface varies in the literature and in practice.",
     "url": "https://en.wikipedia.org/wiki/Sea_surface_temperature?oldid=1374459881",
     "timestamp": "2026-09-12T04:37:56Z"
    },
    {
     "title": "Marine heatwave",
     "revision": 1370681277,
     "license": "CC BY-SA 4.0",
     "extract": "A marine heatwave is a period of abnormally high sea surface temperatures (SST) compared to typical temperatures for a particular season and locale. Marine heatwaves are caused by a variety of drivers.",
     "url": "https://en.wikipedia.org/wiki/Marine_heatwave?oldid=1370681277",
     "timestamp": "2026-08-22T14:01:49Z"
    }
   ]
  },
  "sigma_theta": {
   "nerc": {
    "p01": "SIGTEQ01",
    "uri": "http://vocab.nerc.ac.uk/collection/P01/current/SIGTEQ01/",
    "pref": "Sigma-theta of the water body by computation from salinity and potential temperature using UNESCO algorithm",
    "alt": "SigmaTheta",
    "definition": "Computed by UNESCO SVAN function using potential temperature",
    "license": "CC BY 4.0",
    "p02": {
     "id": "SIGT",
     "uri": "http://vocab.nerc.ac.uk/collection/P02/current/SIGT/",
     "pref": "Density of the water column",
     "definition": "Absolute determinations of water column density plus parameters (generally expressed as density anomaly) derived from temperature and salinity",
     "same_as": [
      "http://vocab.nerc.ac.uk/collection/OD1/current/DENS/"
     ]
    },
    "p06": {
     "id": "UKMC",
     "uri": "http://vocab.nerc.ac.uk/collection/P06/current/UKMC/",
     "pref": "Kilograms per cubic metre",
     "definition": "Unavailable",
     "same_as": [
      "http://qudt.org/vocab/unit/KiloGM-PER-M3",
      "http://dbpedia.org/resource/Kilogram_per_cubic_metre"
     ]
    }
   },
   "face": {
    "kind": "scale",
    "face_of": null,
    "source": "record"
   },
   "wikipedia": [
    {
     "title": "Potential density",
     "revision": 1276849953,
     "license": "CC BY-SA 4.0",
     "extract": "The potential density of a fluid parcel at pressure  is the density that the parcel would acquire if adiabatically brought to a reference pressure , often 1 bar. Whereas density changes with changing pressure, potential density of a fluid parcel is conserved as the pressure experienced by the parcel changes.",
     "url": "https://en.wikipedia.org/wiki/Potential_density?oldid=1276849953",
     "timestamp": "2025-02-21T03:37:01Z"
    },
    {
     "title": "Thermocline",
     "revision": 1321126441,
     "license": "CC BY-SA 4.0",
     "extract": "A thermocline is\na distinct layer based on temperature within a large body of fluid with a high gradient of distinct temperature differences associated with depth. In the ocean, the thermocline divides the upper mixed layer from the calm deep water below.",
     "url": "https://en.wikipedia.org/wiki/Thermocline?oldid=1321126441",
     "timestamp": "2025-11-08T21:40:07Z"
    }
   ]
  },
  "salinity": {
   "nerc": {
    "p01": "PSLTZZ01",
    "uri": "http://vocab.nerc.ac.uk/collection/P01/current/PSLTZZ01/",
    "pref": "Practical salinity of the water body",
    "alt": "P_sal",
    "definition": "The quantity of dissolved ions (predominantly salt in seawater) expressed on a scale (PSS-78) based on the conductivity ratio of a seawater sample to a standard KCl solution.",
    "license": "CC BY 4.0",
    "s06": {
     "id": "S0600083",
     "uri": "http://vocab.nerc.ac.uk/collection/S06/current/S0600083/",
     "pref": "Practical salinity",
     "definition": "The quantity of dissolved ions (predominantly salt in seawater) expressed on a scale (PSS-78) based on the conductivity ratio of a seawater sample to a standard KCl solution.",
     "same_as": []
    },
    "a05": {
     "id": "EV_SALIN",
     "uri": "http://vocab.nerc.ac.uk/collection/A05/current/EV_SALIN/",
     "pref": "Salinity",
     "definition": "The salinity of seawater expressed against the Practical Salinity Scale 1978 (PSS-78) standard.",
     "same_as": [
      "http://vocab.nerc.ac.uk/collection/OD1/current/SAL/"
     ]
    },
    "p02": {
     "id": "PSAL",
     "uri": "http://vocab.nerc.ac.uk/collection/P02/current/PSAL/",
     "pref": "Salinity of the water column",
     "definition": "Parameters quantifying the concentration of sodium chloride in any body of water at any point between the bed and the atmosphere",
     "same_as": [
      "https://www.nodc.noaa.gov/cgi-bin/OAS/prd/datatype/details/307",
      "http://vocab.nerc.ac.uk/collection/OD1/current/SAL/"
     ]
    },
    "p06": {
     "id": "UUUU",
     "uri": "http://vocab.nerc.ac.uk/collection/P06/current/UUUU/",
     "pref": "Dimensionless",
     "definition": "A quantity with the dimension of 1.",
     "same_as": [
      "http://onto.nerc.ac.uk/CAST/163",
      "http://vocab.nerc.ac.uk/collection/OG1/current/EDLAM/"
     ]
    }
   },
   "face": {
    "kind": "composition",
    "face_of": null,
    "source": "record"
   },
   "structures": [
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     "chebi": "CHEBI:15858",
     "name": "bromide",
     "formula": "Br",
     "charge": -1,
     "mass": "79.904",
     "definition": null,
     "license": "CC BY 4.0",
     "url": "https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:15858",
     "role": "component",
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     "mass_fraction": 0.0019134,
     "source": "TEOS-10 Manual (IOC, SCOR & IAPSO 2010) Table D.3, mass fractions of Reference-Composition sea salt (Millero et al. 2008)"
    },
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     "name": "sulfate",
     "formula": "O4S",
     "charge": -2,
     "mass": "96.063",
     "definition": "A sulfur oxoanion obtained by deprotonation of both OH groups of sulfuric acid.",
     "license": "CC BY 4.0",
     "url": "https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:16189",
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     "mass_fraction": 0.0771319,
     "source": "TEOS-10 Manual (IOC, SCOR & IAPSO 2010) Table D.3, mass fractions of Reference-Composition sea salt (Millero et al. 2008)",
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    {
     "chebi": "CHEBI:17544",
     "name": "hydrogencarbonate",
     "formula": "CHO3",
     "charge": -1,
     "mass": "61.016",
     "definition": "The carbon oxoanion resulting from the removal of a proton from carbonic acid.",
     "license": "CC BY 4.0",
     "url": "https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:17544",
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     "chebi": "CHEBI:29103",
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     "definition": "A monoatomic monocation obtained from potassium.",
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     "mass": "40.078",
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   ],
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    {
     "title": "Salinity",
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     "license": "CC BY-SA 4.0",
     "extract": "Salinity is the saltiness or amount of salt dissolved in a body of water, called saline water. It is usually measured in g/L or g/kg.",
     "url": "https://en.wikipedia.org/wiki/Salinity?oldid=1368851206",
     "timestamp": "2026-08-11T12:19:14Z"
    },
    {
     "title": "Water mass",
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     "extract": "An oceanographic water mass is an identifiable body of water with a common formation history which has physical properties distinct from surrounding water. Properties include temperature, salinity, chemical - isotopic ratios, and other physical quantities which are conservative flow tracers.",
     "url": "https://en.wikipedia.org/wiki/Water_mass?oldid=1209340783",
     "timestamp": "2024-02-21T12:15:55Z"
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     "title": "Pungency",
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     "extract": "Pungency, commonly referred to as spiciness, hotness or heat, is a sensation that contributes to the flavor of certain foods such as chili peppers. Highly pungent foods may be experienced as unpleasant.",
     "url": "https://en.wikipedia.org/wiki/Pungency?oldid=1374763599",
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    "definition": "Concentration of dissolved oxygen per unit volume of the water column. Oxygen may be expressed in terms of mass, volume or quantity of substance.",
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     "pref": "Micromoles per kilogram",
     "definition": "Unavailable",
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    "license": "CC BY 4.0",
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     "url": "https://en.wikipedia.org/wiki/Pressure?oldid=1378601778",
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     "definition": "Degré de chaleur d'un objet, d'une matrice, d'un environnement, exprimé selon une échelle standard.; The degree of hotness of an object, a measurement matrix, an environment, expressed against a standard scale.",
     "same_as": [
      "http://qudt.org/vocab/quantitykind/Temperature"
     ]
    },
    "a05": {
     "id": "EV_SEATEMP",
     "uri": "http://vocab.nerc.ac.uk/collection/A05/current/EV_SEATEMP/",
     "pref": "Temperature",
     "definition": "The temperature of seawater expressed against the International Temperature Scale 1990 (ITS-90) standard.",
     "same_as": [
      "http://vocab.nerc.ac.uk/collection/OD1/current/SEATEMP/"
     ]
    },
    "p02": {
     "id": "TEMP",
     "uri": "http://vocab.nerc.ac.uk/collection/P02/current/TEMP/",
     "pref": "Temperature of the water column",
     "definition": "Temperature parameters in any body of water at any point between the bed and the atmosphere excluding the top few microns sampled by radiometers known as the skin",
     "same_as": [
      "https://www.nodc.noaa.gov/cgi-bin/OAS/prd/datatype/details/373",
      "http://vocab.nerc.ac.uk/collection/OD1/current/SEATEMP/"
     ]
    },
    "p06": {
     "id": "UPAA",
     "uri": "http://vocab.nerc.ac.uk/collection/P06/current/UPAA/",
     "pref": "Degrees Celsius",
     "definition": "Unavailable",
     "same_as": [
      "http://qudt.org/vocab/unit/DEG_C",
      "http://dbpedia.org/resource/Celsius",
      "http://onto.nerc.ac.uk/CAST/153"
     ]
    },
    "borrowed_from": "temperature"
   },
   "face": {
    "kind": "standsin",
    "face_of": "temperature",
    "source": "record"
   },
   "wikipedia": [
    {
     "title": "Sea surface temperature",
     "revision": 1374459881,
     "license": "CC BY-SA 4.0",
     "extract": "Sea surface temperature is the temperature of ocean water close to the surface. The exact meaning of surface varies in the literature and in practice.",
     "url": "https://en.wikipedia.org/wiki/Sea_surface_temperature?oldid=1374459881",
     "timestamp": "2026-09-12T04:37:56Z"
    },
    {
     "title": "Marine heatwave",
     "revision": 1370681277,
     "license": "CC BY-SA 4.0",
     "extract": "A marine heatwave is a period of abnormally high sea surface temperatures (SST) compared to typical temperatures for a particular season and locale. Marine heatwaves are caused by a variety of drivers.",
     "url": "https://en.wikipedia.org/wiki/Marine_heatwave?oldid=1370681277",
     "timestamp": "2026-08-22T14:01:49Z"
    }
   ]
  },
  "r_dynamic_height": {
   "face": {
    "kind": "scale",
    "face_of": null,
    "source": "record"
   },
   "wikipedia": [
    {
     "title": "Geostrophic current",
     "revision": 1344173703,
     "license": "CC BY-SA 4.0",
     "extract": "A geostrophic current is an oceanic current in which the pressure gradient force is balanced by the Coriolis effect. The direction of geostrophic flow is parallel to the isobars, with the high pressure to the right of the flow in the Northern Hemisphere, and the high pressure to the left in the Southern Hemisphere.",
     "url": "https://en.wikipedia.org/wiki/Geostrophic_current?oldid=1344173703",
     "timestamp": "2026-03-18T20:06:15Z"
    }
   ]
  },
  "r_salinity_sva": {
   "face": {
    "kind": "scale",
    "face_of": null,
    "source": "record"
   },
   "wikipedia": [
    {
     "title": "Geostrophic current",
     "revision": 1344173703,
     "license": "CC BY-SA 4.0",
     "extract": "A geostrophic current is an oceanic current in which the pressure gradient force is balanced by the Coriolis effect. The direction of geostrophic flow is parallel to the isobars, with the high pressure to the right of the flow in the Northern Hemisphere, and the high pressure to the left in the Southern Hemisphere.",
     "url": "https://en.wikipedia.org/wiki/Geostrophic_current?oldid=1344173703",
     "timestamp": "2026-03-18T20:06:15Z"
    }
   ]
  },
  "sigma_theta_teos10": {
   "nerc": {
    "p01": "SIGTPR03",
    "uri": "http://vocab.nerc.ac.uk/collection/P01/current/SIGTPR03/",
    "pref": "Potential density anomaly {Sigma-0} of the water body by computation from absolute salinity and conservative temperature using UNESCO 2010 algorithm",
    "alt": "Sigma0_TEOS10",
    "definition": "The difference between the density of a water parcel and a density of 1000 kg/m^3, if the water parcel were moved adiabatically to 0 decibars. Calculated from the corresponding absolute salinity and conservative temperature values using the algorithm from IOC, SCOR and IAPSO (2010). TEOS-10: Thermodynamic Properties of Seawater Calculation and Use. UNESCO, Paris.",
    "license": "CC BY 4.0",
    "s06": {
     "id": "S0600348",
     "uri": "http://vocab.nerc.ac.uk/collection/S06/current/S0600348/",
     "pref": "Potential density anomaly",
     "definition": "The difference between the ratio of a fluid's mass to its volume, if the fluid parcel were moved adiabatically to a reference pressure, and a reference density (usually 1000 kg/m^3).",
     "same_as": []
    },
    "p02": {
     "id": "SIGT",
     "uri": "http://vocab.nerc.ac.uk/collection/P02/current/SIGT/",
     "pref": "Density of the water column",
     "definition": "Absolute determinations of water column density plus parameters (generally expressed as density anomaly) derived from temperature and salinity",
     "same_as": [
      "http://vocab.nerc.ac.uk/collection/OD1/current/DENS/"
     ]
    },
    "p06": {
     "id": "UKMC",
     "uri": "http://vocab.nerc.ac.uk/collection/P06/current/UKMC/",
     "pref": "Kilograms per cubic metre",
     "definition": "Unavailable",
     "same_as": [
      "http://qudt.org/vocab/unit/KiloGM-PER-M3",
      "http://dbpedia.org/resource/Kilogram_per_cubic_metre"
     ]
    }
   },
   "face": {
    "kind": "scale",
    "face_of": null,
    "source": "record"
   }
  },
  "pressure": {
   "nerc": {
    "p01": "PRESPR01",
    "uri": "http://vocab.nerc.ac.uk/collection/P01/current/PRESPR01/",
    "pref": "Pressure (spatial coordinate) exerted by the water body by profiling pressure sensor and correction to read zero at sea level",
    "alt": "Pres_Z",
    "definition": "The force per unit area exerted by the water column on a mobile sensor located in the water column.",
    "license": "CC BY 4.0",
    "s06": {
     "id": "S0600168",
     "uri": "http://vocab.nerc.ac.uk/collection/S06/current/S0600168/",
     "pref": "Pressure (spatial coordinate)",
     "definition": "The vertical location of an object or an observation in a water body or in the atmosphere expressed as the pressure exerted by the water column or the atmosphere at that depth or altitude.",
     "same_as": []
    },
    "p02": {
     "id": "AHGT",
     "uri": "http://vocab.nerc.ac.uk/collection/P02/current/AHGT/",
     "pref": "Vertical spatial coordinates",
     "definition": "All vertical spatial parameters including depth, height and pressure when used as an independent variable.",
     "same_as": []
    },
    "p07": {
     "id": "CFSN0330",
     "uri": "http://vocab.nerc.ac.uk/collection/P07/current/CFSN0330/",
     "pref": "sea_water_pressure",
     "definition": "\"Sea water pressure\" is the pressure that exists in the medium of sea water.  It includes the pressure due to overlying sea water, sea ice, air and any other medium that may be present. For sea water pressure excluding the pressure due to overlying media other than sea water, the standard name sea_water_pressure_due_to_sea_water should be used.",
     "same_as": [
      "http://mmisw.org/ont/cf/parameter/sea_water_pressure",
      "http://vocab.nerc.ac.uk/standard_name/sea_water_pressure/",
      "http://vocab.nerc.ac.uk/collection/P04/current/G958/",
      "http://vocab.nerc.ac.uk/collection/P64/current/G958/"
     ]
    },
    "p06": {
     "id": "UPDB",
     "uri": "http://vocab.nerc.ac.uk/collection/P06/current/UPDB/",
     "pref": "Decibars",
     "definition": "Unavailable",
     "same_as": [
      "http://qudt.org/vocab/unit/DeciBAR"
     ]
    }
   },
   "face": {
    "kind": "scale",
    "face_of": null,
    "source": "record"
   },
   "wikipedia": [
    {
     "title": "Pressure",
     "revision": 1378601778,
     "license": "CC BY-SA 4.0",
     "extract": "Pressure is the force applied perpendicular to the surface of an object per unit area over which that force is distributed. Gauge pressure is the pressure relative to the ambient pressure.",
     "url": "https://en.wikipedia.org/wiki/Pressure?oldid=1378601778",
     "timestamp": "2026-10-05T04:19:25Z"
    }
   ]
  },
  "salinity_1": {
   "nerc": {
    "p01": "PSALST01",
    "uri": "http://vocab.nerc.ac.uk/collection/P01/current/PSALST01/",
    "pref": "Practical salinity of the water body by CTD and computation using UNESCO 1983 algorithm",
    "alt": "P_sal_CTD",
    "definition": "This is the preferred term for this definition.  Alternative term PSALST02 is included to cover cases where there are two sensors of the same type contributing to the data set and referential integrity considerations prevent a usage of a single code.",
    "license": "CC BY 4.0",
    "s06": {
     "id": "S0600083",
     "uri": "http://vocab.nerc.ac.uk/collection/S06/current/S0600083/",
     "pref": "Practical salinity",
     "definition": "The quantity of dissolved ions (predominantly salt in seawater) expressed on a scale (PSS-78) based on the conductivity ratio of a seawater sample to a standard KCl solution.",
     "same_as": []
    },
    "p07": {
     "id": "IADIHDIJ",
     "uri": "http://vocab.nerc.ac.uk/collection/P07/current/IADIHDIJ/",
     "pref": "sea_water_practical_salinity",
     "definition": "Practical Salinity, S_P, is a determination of the salinity of sea water, based on its electrical conductance. The measured conductance, corrected for temperature and pressure, is compared to the conductance of a standard potassium chloride solution, producing a value on the Practical Salinity Scale of 1978 (PSS-78). This name should not be used to describe salinity observations made before 1978, or ones not based on conductance measurements. Conversion of Practical Salinity to other precisely defined salinity measures should use the appropriate formulas specified by TEOS-10. Other standard names for precisely defined salinity quantities are sea_water_absolute_salinity (S_A); sea_water_preformed_salinity (S_*), sea_water_reference_salinity (S_R); sea_water_cox_salinity (S_C), used for salinity observations between 1967 and 1977; and sea_water_knudsen_salinity (S_K), used for salinity observations between 1901 and 1966. Salinity quantities that do not match any of the precise definitions should be given the more general standard name of sea_water_salinity. Reference: www.teos-10.org; Lewis, 1980 doi:10.1109/JOE.1980.1145448.",
     "same_as": [
      "http://mmisw.org/ont/cf/parameter/sea_water_practical_salinity",
      "http://vocab.nerc.ac.uk/standard_name/sea_water_practical_salinity/"
     ]
    },
    "a05": {
     "id": "EV_SALIN",
     "uri": "http://vocab.nerc.ac.uk/collection/A05/current/EV_SALIN/",
     "pref": "Salinity",
     "definition": "The salinity of seawater expressed against the Practical Salinity Scale 1978 (PSS-78) standard.",
     "same_as": [
      "http://vocab.nerc.ac.uk/collection/OD1/current/SAL/"
     ]
    },
    "p02": {
     "id": "PSAL",
     "uri": "http://vocab.nerc.ac.uk/collection/P02/current/PSAL/",
     "pref": "Salinity of the water column",
     "definition": "Parameters quantifying the concentration of sodium chloride in any body of water at any point between the bed and the atmosphere",
     "same_as": [
      "https://www.nodc.noaa.gov/cgi-bin/OAS/prd/datatype/details/307",
      "http://vocab.nerc.ac.uk/collection/OD1/current/SAL/"
     ]
    },
    "p06": {
     "id": "UUUU",
     "uri": "http://vocab.nerc.ac.uk/collection/P06/current/UUUU/",
     "pref": "Dimensionless",
     "definition": "A quantity with the dimension of 1.",
     "same_as": [
      "http://onto.nerc.ac.uk/CAST/163",
      "http://vocab.nerc.ac.uk/collection/OG1/current/EDLAM/"
     ]
    }
   },
   "face": {
    "kind": "composition",
    "face_of": null,
    "source": "record"
   },
   "structures": [
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     "chebi": "CHEBI:15858",
     "name": "bromide",
     "formula": "Br",
     "charge": -1,
     "mass": "79.904",
     "definition": null,
     "license": "CC BY 4.0",
     "url": "https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:15858",
     "role": "component",
     "via": "registry",
     "mass_fraction": 0.0019134,
     "source": "TEOS-10 Manual (IOC, SCOR & IAPSO 2010) Table D.3, mass fractions of Reference-Composition sea salt (Millero et al. 2008)"
    },
    {
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     "name": "sulfate",
     "formula": "O4S",
     "charge": -2,
     "mass": "96.063",
     "definition": "A sulfur oxoanion obtained by deprotonation of both OH groups of sulfuric acid.",
     "license": "CC BY 4.0",
     "url": "https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:16189",
     "role": "component",
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     "mass_fraction": 0.0771319,
     "source": "TEOS-10 Manual (IOC, SCOR & IAPSO 2010) Table D.3, mass fractions of Reference-Composition sea salt (Millero et al. 2008)",
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     "chebi": "CHEBI:17544",
     "name": "hydrogencarbonate",
     "formula": "CHO3",
     "charge": -1,
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     "definition": "The carbon oxoanion resulting from the removal of a proton from carbonic acid.",
     "license": "CC BY 4.0",
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     "url": "https://en.wikipedia.org/wiki/Hypoxia_(environmental)?oldid=1376149337",
     "timestamp": "2026-09-22T10:35:19Z"
    }
   ]
  },
  "salinity_1_corr": {
   "nerc": {
    "p01": "PSALST01",
    "uri": "http://vocab.nerc.ac.uk/collection/P01/current/PSALST01/",
    "pref": "Practical salinity of the water body by CTD and computation using UNESCO 1983 algorithm",
    "alt": "P_sal_CTD",
    "definition": "This is the preferred term for this definition.  Alternative term PSALST02 is included to cover cases where there are two sensors of the same type contributing to the data set and referential integrity considerations prevent a usage of a single code.",
    "license": "CC BY 4.0",
    "s06": {
     "id": "S0600083",
     "uri": "http://vocab.nerc.ac.uk/collection/S06/current/S0600083/",
     "pref": "Practical salinity",
     "definition": "The quantity of dissolved ions (predominantly salt in seawater) expressed on a scale (PSS-78) based on the conductivity ratio of a seawater sample to a standard KCl solution.",
     "same_as": []
    },
    "p07": {
     "id": "IADIHDIJ",
     "uri": "http://vocab.nerc.ac.uk/collection/P07/current/IADIHDIJ/",
     "pref": "sea_water_practical_salinity",
     "definition": "Practical Salinity, S_P, is a determination of the salinity of sea water, based on its electrical conductance. The measured conductance, corrected for temperature and pressure, is compared to the conductance of a standard potassium chloride solution, producing a value on the Practical Salinity Scale of 1978 (PSS-78). This name should not be used to describe salinity observations made before 1978, or ones not based on conductance measurements. Conversion of Practical Salinity to other precisely defined salinity measures should use the appropriate formulas specified by TEOS-10. Other standard names for precisely defined salinity quantities are sea_water_absolute_salinity (S_A); sea_water_preformed_salinity (S_*), sea_water_reference_salinity (S_R); sea_water_cox_salinity (S_C), used for salinity observations between 1967 and 1977; and sea_water_knudsen_salinity (S_K), used for salinity observations between 1901 and 1966. Salinity quantities that do not match any of the precise definitions should be given the more general standard name of sea_water_salinity. Reference: www.teos-10.org; Lewis, 1980 doi:10.1109/JOE.1980.1145448.",
     "same_as": [
      "http://mmisw.org/ont/cf/parameter/sea_water_practical_salinity",
      "http://vocab.nerc.ac.uk/standard_name/sea_water_practical_salinity/"
     ]
    },
    "a05": {
     "id": "EV_SALIN",
     "uri": "http://vocab.nerc.ac.uk/collection/A05/current/EV_SALIN/",
     "pref": "Salinity",
     "definition": "The salinity of seawater expressed against the Practical Salinity Scale 1978 (PSS-78) standard.",
     "same_as": [
      "http://vocab.nerc.ac.uk/collection/OD1/current/SAL/"
     ]
    },
    "p02": {
     "id": "PSAL",
     "uri": "http://vocab.nerc.ac.uk/collection/P02/current/PSAL/",
     "pref": "Salinity of the water column",
     "definition": "Parameters quantifying the concentration of sodium chloride in any body of water at any point between the bed and the atmosphere",
     "same_as": [
      "https://www.nodc.noaa.gov/cgi-bin/OAS/prd/datatype/details/307",
      "http://vocab.nerc.ac.uk/collection/OD1/current/SAL/"
     ]
    },
    "p06": {
     "id": "UUUU",
     "uri": "http://vocab.nerc.ac.uk/collection/P06/current/UUUU/",
     "pref": "Dimensionless",
     "definition": "A quantity with the dimension of 1.",
     "same_as": [
      "http://onto.nerc.ac.uk/CAST/163",
      "http://vocab.nerc.ac.uk/collection/OG1/current/EDLAM/"
     ]
    }
   },
   "face": {
    "kind": "composition",
    "face_of": null,
    "source": "record"
   },
   "structures": [
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     "chebi": "CHEBI:15858",
     "name": "bromide",
     "formula": "Br",
     "charge": -1,
     "mass": "79.904",
     "definition": null,
     "license": "CC BY 4.0",
     "url": "https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:15858",
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     "mass_fraction": 0.0019134,
     "source": "TEOS-10 Manual (IOC, SCOR & IAPSO 2010) Table D.3, mass fractions of Reference-Composition sea salt (Millero et al. 2008)"
    },
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     "name": "sulfate",
     "formula": "O4S",
     "charge": -2,
     "mass": "96.063",
     "definition": "A sulfur oxoanion obtained by deprotonation of both OH groups of sulfuric acid.",
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     "chebi": "CHEBI:17544",
     "name": "hydrogencarbonate",
     "formula": "CHO3",
     "charge": -1,
     "mass": "61.016",
     "definition": "The carbon oxoanion resulting from the removal of a proton from carbonic acid.",
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     "name": "chloride",
     "formula": "Cl",
     "charge": -1,
     "mass": "35.453",
     "definition": "A halide anion formed when chlorine picks up an electron to form an an anion.",
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    {
     "chebi": "CHEBI:18420",
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     "charge": 2,
     "mass": "24.305",
     "definition": null,
     "license": "CC BY 4.0",
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     "source": "TEOS-10 Manual (IOC, SCOR & IAPSO 2010) Table D.3, mass fractions of Reference-Composition sea salt (Millero et al. 2008)"
    },
    {
     "chebi": "CHEBI:29101",
     "name": "sodium(1+)",
     "formula": "Na",
     "charge": 1,
     "mass": "22.990",
     "definition": "A monoatomic monocation obtained from sodium.",
     "license": "CC BY 4.0",
     "url": "https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:29101",
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     "mass_fraction": 0.3065958,
     "source": "TEOS-10 Manual (IOC, SCOR & IAPSO 2010) Table D.3, mass fractions of Reference-Composition sea salt (Millero et al. 2008)"
    },
    {
     "chebi": "CHEBI:29103",
     "name": "potassium(1+)",
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     "charge": 1,
     "mass": "39.098",
     "definition": "A monoatomic monocation obtained from potassium.",
     "license": "CC BY 4.0",
     "url": "https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:29103",
     "role": "component",
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     "mass_fraction": 0.0113495,
     "source": "TEOS-10 Manual (IOC, SCOR & IAPSO 2010) Table D.3, mass fractions of Reference-Composition sea salt (Millero et al. 2008)"
    },
    {
     "chebi": "CHEBI:29108",
     "name": "calcium(2+)",
     "formula": "Ca",
     "charge": 2,
     "mass": "40.078",
     "definition": null,
     "license": "CC BY 4.0",
     "url": "https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:29108",
     "role": "component",
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     "mass_fraction": 0.0117186,
     "source": "TEOS-10 Manual (IOC, SCOR & IAPSO 2010) Table D.3, mass fractions of Reference-Composition sea salt (Millero et al. 2008)"
    }
   ],
   "wikipedia": [
    {
     "title": "Salinity",
     "revision": 1368851206,
     "license": "CC BY-SA 4.0",
     "extract": "Salinity is the saltiness or amount of salt dissolved in a body of water, called saline water. It is usually measured in g/L or g/kg.",
     "url": "https://en.wikipedia.org/wiki/Salinity?oldid=1368851206",
     "timestamp": "2026-08-11T12:19:14Z"
    },
    {
     "title": "Water mass",
     "revision": 1209340783,
     "license": "CC BY-SA 4.0",
     "extract": "An oceanographic water mass is an identifiable body of water with a common formation history which has physical properties distinct from surrounding water. Properties include temperature, salinity, chemical - isotopic ratios, and other physical quantities which are conservative flow tracers.",
     "url": "https://en.wikipedia.org/wiki/Water_mass?oldid=1209340783",
     "timestamp": "2024-02-21T12:15:55Z"
    }
   ]
  },
  "oxygen_umol_kg_1": {
   "nerc": {
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    "uri": "http://vocab.nerc.ac.uk/collection/P01/current/DOXMZZXX/",
    "pref": "Concentration of oxygen {O2 CAS 7782-44-7} per unit mass of the water body [dissolved plus reactive particulate phase]",
    "alt": "DissO2_Mass",
    "definition": "Concentration of dissolved oxygen per unit mass of the water column. Oxygen may be expressed in terms of mass, volume or quantity of substance.",
    "license": "CC BY 4.0",
    "s27": {
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     "definition": "Non displonible.; Molecular oxygen",
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     "cas": "7782-44-7"
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    "p02": {
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     "definition": "All dissolved oxygen parameters (including saturation and utilisation) for the water column",
     "same_as": [
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      "http://vocab.nerc.ac.uk/collection/C47/current/IN5_3_2/",
      "http://vocab.nerc.ac.uk/collection/P04/current/G687/"
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    },
    "a05": {
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     "uri": "http://vocab.nerc.ac.uk/collection/A05/current/EV_OXY/",
     "pref": "Oxygen",
     "definition": "The amount of dissolved oxygen in seawater using water column measurements.",
     "same_as": [
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    },
    "p06": {
     "id": "KGUM",
     "uri": "http://vocab.nerc.ac.uk/collection/P06/current/KGUM/",
     "pref": "Micromoles per kilogram",
     "definition": "Unavailable",
     "same_as": [
      "http://qudt.org/vocab/unit/MicroMOL-PER-KiloGM"
     ]
    }
   },
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     "formula": "O2",
     "charge": 0,
     "mass": "31.998",
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    "definition": "Unavailable",
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     "id": "ATTN",
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     "definition": "Parameters relating to the rate of electromagnetic radiation intensity decrease as it travels through the water column",
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     "definition": "Unavailable",
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   "wikipedia": [
    {
     "title": "Transmissometer",
     "revision": 1328380936,
     "license": "CC BY-SA 4.0",
     "extract": "A transmissometer or transmissiometer is an instrument for measuring the extinction coefficient of the atmosphere and sea water, and for the determination of visual range. It operates by sending a narrow, collimated beam of energy through the propagation medium.",
     "url": "https://en.wikipedia.org/wiki/Transmissometer?oldid=1328380936",
     "timestamp": "2025-12-19T14:49:00Z"
    }
   ]
  },
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    "alt": "P_sal_CTD2",
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    "license": "CC BY 4.0",
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     "id": "S0600083",
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     "title": "Salinity",
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     "url": "https://en.wikipedia.org/wiki/Salinity?oldid=1368851206",
     "timestamp": "2026-08-11T12:19:14Z"
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     "extract": "An oceanographic water mass is an identifiable body of water with a common formation history which has physical properties distinct from surrounding water. Properties include temperature, salinity, chemical - isotopic ratios, and other physical quantities which are conservative flow tracers.",
     "url": "https://en.wikipedia.org/wiki/Water_mass?oldid=1209340783",
     "timestamp": "2024-02-21T12:15:55Z"
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     "definition": "A halide anion formed when chlorine picks up an electron to form an an anion.",
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     "mass": "22.990",
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     "charge": 1,
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     "definition": "A monoatomic monocation obtained from potassium.",
     "license": "CC BY 4.0",
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     "license": "CC BY 4.0",
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    {
     "title": "Salinity",
     "revision": 1368851206,
     "license": "CC BY-SA 4.0",
     "extract": "Salinity is the saltiness or amount of salt dissolved in a body of water, called saline water. It is usually measured in g/L or g/kg.",
     "url": "https://en.wikipedia.org/wiki/Salinity?oldid=1368851206",
     "timestamp": "2026-08-11T12:19:14Z"
    },
    {
     "title": "Water mass",
     "revision": 1209340783,
     "license": "CC BY-SA 4.0",
     "extract": "An oceanographic water mass is an identifiable body of water with a common formation history which has physical properties distinct from surrounding water. Properties include temperature, salinity, chemical - isotopic ratios, and other physical quantities which are conservative flow tracers.",
     "url": "https://en.wikipedia.org/wiki/Water_mass?oldid=1209340783",
     "timestamp": "2024-02-21T12:15:55Z"
    }
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     "extract": "Sea surface temperature is the temperature of ocean water close to the surface. The exact meaning of surface varies in the literature and in practice.",
     "url": "https://en.wikipedia.org/wiki/Sea_surface_temperature?oldid=1374459881",
     "timestamp": "2026-09-12T04:37:56Z"
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     "title": "Marine heatwave",
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     "extract": "A marine heatwave is a period of abnormally high sea surface temperatures (SST) compared to typical temperatures for a particular season and locale. Marine heatwaves are caused by a variety of drivers.",
     "url": "https://en.wikipedia.org/wiki/Marine_heatwave?oldid=1370681277",
     "timestamp": "2026-08-22T14:01:49Z"
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    "license": "CC BY 4.0",
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      "http://vocab.nerc.ac.uk/collection/P04/current/G687/"
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    {
     "title": "Ocean deoxygenation",
     "revision": 1354922617,
     "license": "CC BY-SA 4.0",
     "extract": "Ocean deoxygenation is the reduction of the oxygen content in different parts of the ocean due to human activities. There are two areas where this occurs.",
     "url": "https://en.wikipedia.org/wiki/Ocean_deoxygenation?oldid=1354922617",
     "timestamp": "2026-05-19T00:18:47Z"
    },
    {
     "title": "Hypoxia (environmental)",
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     "license": "CC BY-SA 4.0",
     "extract": "Hypoxia refers to low oxygen conditions. Hypoxia is problematic for air-breathing organisms, yet it is essential for many anaerobic organisms.",
     "url": "https://en.wikipedia.org/wiki/Hypoxia_(environmental)?oldid=1376149337",
     "timestamp": "2026-09-22T10:35:19Z"
    }
   ]
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   "nerc": {
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    "uri": "http://vocab.nerc.ac.uk/collection/P01/current/DOXMZZXX/",
    "pref": "Concentration of oxygen {O2 CAS 7782-44-7} per unit mass of the water body [dissolved plus reactive particulate phase]",
    "alt": "DissO2_Mass",
    "definition": "Concentration of dissolved oxygen per unit mass of the water column. Oxygen may be expressed in terms of mass, volume or quantity of substance.",
    "license": "CC BY 4.0",
    "s27": {
     "id": "CS002779",
     "uri": "http://vocab.nerc.ac.uk/collection/S27/current/CS002779/",
     "pref": "Oxygène; oxygen",
     "definition": "Non displonible.; Molecular oxygen",
     "same_as": [
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      "http://purl.obolibrary.org/obo/CHEBI_15379"
     ],
     "chebi": "CHEBI:15379",
     "cas": "7782-44-7"
    },
    "p07": {
     "id": "CFSN0517",
     "uri": "http://vocab.nerc.ac.uk/collection/P07/current/CFSN0517/",
     "pref": "moles_of_oxygen_per_unit_mass_in_sea_water",
     "definition": "moles_of_X_per_unit_mass_inY is also called 'molality' of X in Y, where X is a material constituent of Y.",
     "same_as": [
      "http://mmisw.org/ont/cf/parameter/moles_of_oxygen_per_unit_mass_in_sea_water",
      "http://vocab.nerc.ac.uk/standard_name/moles_of_oxygen_per_unit_mass_in_sea_water/"
     ]
    },
    "p02": {
     "id": "DOXY",
     "uri": "http://vocab.nerc.ac.uk/collection/P02/current/DOXY/",
     "pref": "Dissolved oxygen parameters in the water column",
     "definition": "All dissolved oxygen parameters (including saturation and utilisation) for the water column",
     "same_as": [
      "http://vocab.nerc.ac.uk/collection/OD1/current/DOXY/",
      "http://vocab.nerc.ac.uk/collection/C47/current/IN5_3_2/",
      "http://vocab.nerc.ac.uk/collection/P04/current/G687/"
     ]
    },
    "a05": {
     "id": "EV_OXY",
     "uri": "http://vocab.nerc.ac.uk/collection/A05/current/EV_OXY/",
     "pref": "Oxygen",
     "definition": "The amount of dissolved oxygen in seawater using water column measurements.",
     "same_as": [
      "http://vocab.nerc.ac.uk/collection/OD1/current/DOXY/"
     ]
    },
    "p06": {
     "id": "KGUM",
     "uri": "http://vocab.nerc.ac.uk/collection/P06/current/KGUM/",
     "pref": "Micromoles per kilogram",
     "definition": "Unavailable",
     "same_as": [
      "http://qudt.org/vocab/unit/MicroMOL-PER-KiloGM"
     ]
    }
   },
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     "formula": "O2",
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     "license": "CC BY 4.0",
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     "role": "the_thing",
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   ],
   "wikipedia": [
    {
     "title": "Ocean deoxygenation",
     "revision": 1354922617,
     "license": "CC BY-SA 4.0",
     "extract": "Ocean deoxygenation is the reduction of the oxygen content in different parts of the ocean due to human activities. There are two areas where this occurs.",
     "url": "https://en.wikipedia.org/wiki/Ocean_deoxygenation?oldid=1354922617",
     "timestamp": "2026-05-19T00:18:47Z"
    },
    {
     "title": "Hypoxia (environmental)",
     "revision": 1376149337,
     "license": "CC BY-SA 4.0",
     "extract": "Hypoxia refers to low oxygen conditions. Hypoxia is problematic for air-breathing organisms, yet it is essential for many anaerobic organisms.",
     "url": "https://en.wikipedia.org/wiki/Hypoxia_(environmental)?oldid=1376149337",
     "timestamp": "2026-09-22T10:35:19Z"
    }
   ]
  },
  "tsg1_salinity_psu": {
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    "uri": "http://vocab.nerc.ac.uk/collection/P01/current/PSLTZZ01/",
    "pref": "Practical salinity of the water body",
    "alt": "P_sal",
    "definition": "The quantity of dissolved ions (predominantly salt in seawater) expressed on a scale (PSS-78) based on the conductivity ratio of a seawater sample to a standard KCl solution.",
    "license": "CC BY 4.0",
    "s06": {
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     "same_as": []
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     "definition": "The salinity of seawater expressed against the Practical Salinity Scale 1978 (PSS-78) standard.",
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     "id": "PSAL",
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     "pref": "Salinity of the water column",
     "definition": "Parameters quantifying the concentration of sodium chloride in any body of water at any point between the bed and the atmosphere",
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    },
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     "id": "UUUU",
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     "definition": "A quantity with the dimension of 1.",
     "same_as": [
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      "http://vocab.nerc.ac.uk/collection/OG1/current/EDLAM/"
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    },
    "borrowed_from": "salinity"
   },
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    "kind": "standsin",
    "face_of": "salinity",
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     "source": "TEOS-10 Manual (IOC, SCOR & IAPSO 2010) Table D.3, mass fractions of Reference-Composition sea salt (Millero et al. 2008)"
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     "mass": "96.063",
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    },
    {
     "chebi": "CHEBI:18420",
     "name": "magnesium(2+)",
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     "mass": "24.305",
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    },
    {
     "chebi": "CHEBI:29101",
     "name": "sodium(1+)",
     "formula": "Na",
     "charge": 1,
     "mass": "22.990",
     "definition": "A monoatomic monocation obtained from sodium.",
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    },
    {
     "chebi": "CHEBI:29103",
     "name": "potassium(1+)",
     "formula": "K",
     "charge": 1,
     "mass": "39.098",
     "definition": "A monoatomic monocation obtained from potassium.",
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     "source": "TEOS-10 Manual (IOC, SCOR & IAPSO 2010) Table D.3, mass fractions of Reference-Composition sea salt (Millero et al. 2008)"
    },
    {
     "chebi": "CHEBI:29108",
     "name": "calcium(2+)",
     "formula": "Ca",
     "charge": 2,
     "mass": "40.078",
     "definition": null,
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     "source": "TEOS-10 Manual (IOC, SCOR & IAPSO 2010) Table D.3, mass fractions of Reference-Composition sea salt (Millero et al. 2008)"
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   "wikipedia": [
    {
     "title": "Salinity",
     "revision": 1368851206,
     "license": "CC BY-SA 4.0",
     "extract": "Salinity is the saltiness or amount of salt dissolved in a body of water, called saline water. It is usually measured in g/L or g/kg.",
     "url": "https://en.wikipedia.org/wiki/Salinity?oldid=1368851206",
     "timestamp": "2026-08-11T12:19:14Z"
    },
    {
     "title": "Water mass",
     "revision": 1209340783,
     "license": "CC BY-SA 4.0",
     "extract": "An oceanographic water mass is an identifiable body of water with a common formation history which has physical properties distinct from surrounding water. Properties include temperature, salinity, chemical - isotopic ratios, and other physical quantities which are conservative flow tracers.",
     "url": "https://en.wikipedia.org/wiki/Water_mass?oldid=1209340783",
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     "title": "Sea surface temperature",
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     "license": "CC BY-SA 4.0",
     "extract": "Sea surface temperature is the temperature of ocean water close to the surface. The exact meaning of surface varies in the literature and in practice.",
     "url": "https://en.wikipedia.org/wiki/Sea_surface_temperature?oldid=1374459881",
     "timestamp": "2026-09-12T04:37:56Z"
    },
    {
     "title": "Marine heatwave",
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     "license": "CC BY-SA 4.0",
     "extract": "A marine heatwave is a period of abnormally high sea surface temperatures (SST) compared to typical temperatures for a particular season and locale. Marine heatwaves are caused by a variety of drivers.",
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     "title": "Thermosalinograph",
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     "url": "https://en.wikipedia.org/wiki/Thermosalinograph?oldid=1345090045",
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     "source": "TEOS-10 Manual (IOC, SCOR & IAPSO 2010) Table D.3, mass fractions of Reference-Composition sea salt (Millero et al. 2008)"
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    {
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     "definition": "A monoatomic monocation obtained from potassium.",
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     "url": "https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:29108",
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    {
     "title": "Salinity",
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     "extract": "Salinity is the saltiness or amount of salt dissolved in a body of water, called saline water. It is usually measured in g/L or g/kg.",
     "url": "https://en.wikipedia.org/wiki/Salinity?oldid=1368851206",
     "timestamp": "2026-08-11T12:19:14Z"
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     "extract": "An oceanographic water mass is an identifiable body of water with a common formation history which has physical properties distinct from surrounding water. Properties include temperature, salinity, chemical - isotopic ratios, and other physical quantities which are conservative flow tracers.",
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     "extract": "The oceanic or limnological mixed layer is a layer in which active turbulence has homogenized some range of depths. The surface mixed layer is a layer in which this turbulence is generated by winds, surface heat fluxes, or processes such as evaporation or sea ice formation which result in an increase in salinity.",
     "url": "https://en.wikipedia.org/wiki/Mixed_layer?oldid=1373305767",
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     "path": "keys/salinity_pss78/CHEBI_17544.svg"
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    {
     "chebi": "CHEBI:17996",
     "name": "chloride",
     "formula": "Cl",
     "charge": -1,
     "mass": "35.453",
     "definition": "A halide anion formed when chlorine picks up an electron to form an an anion.",
     "license": "CC BY 4.0",
     "url": "https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:17996",
     "role": "component",
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     "mass_fraction": 0.5503396,
     "source": "TEOS-10 Manual (IOC, SCOR & IAPSO 2010) Table D.3, mass fractions of Reference-Composition sea salt (Millero et al. 2008)"
    },
    {
     "chebi": "CHEBI:18420",
     "name": "magnesium(2+)",
     "formula": "Mg",
     "charge": 2,
     "mass": "24.305",
     "definition": null,
     "license": "CC BY 4.0",
     "url": "https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:18420",
     "role": "component",
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     "mass_fraction": 0.0365055,
     "source": "TEOS-10 Manual (IOC, SCOR & IAPSO 2010) Table D.3, mass fractions of Reference-Composition sea salt (Millero et al. 2008)"
    },
    {
     "chebi": "CHEBI:29101",
     "name": "sodium(1+)",
     "formula": "Na",
     "charge": 1,
     "mass": "22.990",
     "definition": "A monoatomic monocation obtained from sodium.",
     "license": "CC BY 4.0",
     "url": "https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:29101",
     "role": "component",
     "via": "registry",
     "mass_fraction": 0.3065958,
     "source": "TEOS-10 Manual (IOC, SCOR & IAPSO 2010) Table D.3, mass fractions of Reference-Composition sea salt (Millero et al. 2008)"
    },
    {
     "chebi": "CHEBI:29103",
     "name": "potassium(1+)",
     "formula": "K",
     "charge": 1,
     "mass": "39.098",
     "definition": "A monoatomic monocation obtained from potassium.",
     "license": "CC BY 4.0",
     "url": "https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:29103",
     "role": "component",
     "via": "registry",
     "mass_fraction": 0.0113495,
     "source": "TEOS-10 Manual (IOC, SCOR & IAPSO 2010) Table D.3, mass fractions of Reference-Composition sea salt (Millero et al. 2008)"
    },
    {
     "chebi": "CHEBI:29108",
     "name": "calcium(2+)",
     "formula": "Ca",
     "charge": 2,
     "mass": "40.078",
     "definition": null,
     "license": "CC BY 4.0",
     "url": "https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:29108",
     "role": "component",
     "via": "registry",
     "mass_fraction": 0.0117186,
     "source": "TEOS-10 Manual (IOC, SCOR & IAPSO 2010) Table D.3, mass fractions of Reference-Composition sea salt (Millero et al. 2008)"
    }
   ],
   "wikipedia": [
    {
     "title": "Salinity",
     "revision": 1368851206,
     "license": "CC BY-SA 4.0",
     "extract": "Salinity is the saltiness or amount of salt dissolved in a body of water, called saline water. It is usually measured in g/L or g/kg.",
     "url": "https://en.wikipedia.org/wiki/Salinity?oldid=1368851206",
     "timestamp": "2026-08-11T12:19:14Z"
    },
    {
     "title": "Water mass",
     "revision": 1209340783,
     "license": "CC BY-SA 4.0",
     "extract": "An oceanographic water mass is an identifiable body of water with a common formation history which has physical properties distinct from surrounding water. Properties include temperature, salinity, chemical - isotopic ratios, and other physical quantities which are conservative flow tracers.",
     "url": "https://en.wikipedia.org/wiki/Water_mass?oldid=1209340783",
     "timestamp": "2024-02-21T12:15:55Z"
    }
   ]
  },
  "ctdtemp_its90": {
   "nerc": {
    "p01": "TEMPST01",
    "uri": "http://vocab.nerc.ac.uk/collection/P01/current/TEMPST01/",
    "pref": "Temperature of the water body by CTD or STD",
    "alt": "WC_temp_CTD",
    "definition": "This is the preferred term for this definition.  Alternative term TEMPST02 is included to cover cases where there are two sensors of the same type contributing to the data set and referential integrity considerations prevent a usage of a single code.",
    "license": "CC BY 4.0",
    "s06": {
     "id": "S0600082",
     "uri": "http://vocab.nerc.ac.uk/collection/S06/current/S0600082/",
     "pref": "Temperature; température",
     "definition": "Degré de chaleur d'un objet, d'une matrice, d'un environnement, exprimé selon une échelle standard.; The degree of hotness of an object, a measurement matrix, an environment, expressed against a standard scale.",
     "same_as": [
      "http://qudt.org/vocab/quantitykind/Temperature"
     ]
    },
    "p07": {
     "id": "CFSN0335",
     "uri": "http://vocab.nerc.ac.uk/collection/P07/current/CFSN0335/",
     "pref": "sea_water_temperature",
     "definition": "Sea water temperature is the in situ temperature of the sea water. To specify the depth at which the temperature applies use a vertical coordinate variable or scalar coordinate variable. There are standard names for sea_surface_temperature, sea_surface_skin_temperature, sea_surface_subskin_temperature and sea_surface_foundation_temperature which can be used to describe data located at the specified surfaces. For observed data, depending on the period during which the observation was made, the measured in situ temperature was recorded against standard \"scales\". These historical scales include the International Practical Temperature Scale of 1948 (IPTS-48; 1948-1967), the International Practical Temperature Scale of 1968 (IPTS-68, Barber, 1969; 1968-1989) and the International Temperature Scale of 1990 (ITS-90, Saunders 1990; 1990 onwards). Conversion of data between these scales follows t68 = t48 - (4.4 x 10e-6) * t48(100 - t - 48); t90 = 0.99976 * t68. Observations made prior to 1948 (IPTS-48) have not been documented and therefore a conversion cannot be certain. Differences between t90 and t68 can be up to 0.01 at temperatures of 40 C and above; differences of 0.002-0.007 occur across the standard range of ocean temperatures (-10 - 30 C). The International Equation of State of Seawater 1980 (EOS-80, UNESCO, 1981) and the Practical Salinity Scale (PSS-78) were both based on IPTS-68, while the Thermodynamic Equation of Seawater 2010 (TEOS-10) is based on ITS-90. References: Barber, 1969, doi: 10.1088/0026-1394/5/2/001; UNESCO, 1981; Saunders, 1990, WOCE Newsletter, 10, September 1990. It is strongly recommended that a variable with this standard name should have a units_metadata attribute, with one of the values \"on-scale\" or \"difference\", whichever is appropriate for the data, because it is essential to know whether the temperature is on-scale (meaning relative to the origin of the scale indicated by the units) or refers to temperature differences (implying that the origin of the temperature scale is irrevelant), in order to convert the units correctly (cf. https://cfconventions.org/cf-conventions/cf-conventions.html#temperature-units).",
     "same_as": [
      "http://mmisw.org/ont/cf/parameter/sea_water_temperature",
      "http://vocab.nerc.ac.uk/standard_name/sea_water_temperature/",
      "http://vocab.nerc.ac.uk/collection/P04/current/G963/",
      "http://vocab.nerc.ac.uk/collection/P64/current/G963/"
     ]
    },
    "a05": {
     "id": "EV_SEATEMP",
     "uri": "http://vocab.nerc.ac.uk/collection/A05/current/EV_SEATEMP/",
     "pref": "Temperature",
     "definition": "The temperature of seawater expressed against the International Temperature Scale 1990 (ITS-90) standard.",
     "same_as": [
      "http://vocab.nerc.ac.uk/collection/OD1/current/SEATEMP/"
     ]
    },
    "p02": {
     "id": "TEMP",
     "uri": "http://vocab.nerc.ac.uk/collection/P02/current/TEMP/",
     "pref": "Temperature of the water column",
     "definition": "Temperature parameters in any body of water at any point between the bed and the atmosphere excluding the top few microns sampled by radiometers known as the skin",
     "same_as": [
      "https://www.nodc.noaa.gov/cgi-bin/OAS/prd/datatype/details/373",
      "http://vocab.nerc.ac.uk/collection/OD1/current/SEATEMP/"
     ]
    },
    "p06": {
     "id": "UPAA",
     "uri": "http://vocab.nerc.ac.uk/collection/P06/current/UPAA/",
     "pref": "Degrees Celsius",
     "definition": "Unavailable",
     "same_as": [
      "http://qudt.org/vocab/unit/DEG_C",
      "http://dbpedia.org/resource/Celsius",
      "http://onto.nerc.ac.uk/CAST/153"
     ]
    }
   },
   "face": {
    "kind": "scale",
    "face_of": null,
    "source": "record"
   },
   "wikipedia": [
    {
     "title": "Sea surface temperature",
     "revision": 1374459881,
     "license": "CC BY-SA 4.0",
     "extract": "Sea surface temperature is the temperature of ocean water close to the surface. The exact meaning of surface varies in the literature and in practice.",
     "url": "https://en.wikipedia.org/wiki/Sea_surface_temperature?oldid=1374459881",
     "timestamp": "2026-09-12T04:37:56Z"
    },
    {
     "title": "Marine heatwave",
     "revision": 1370681277,
     "license": "CC BY-SA 4.0",
     "extract": "A marine heatwave is a period of abnormally high sea surface temperatures (SST) compared to typical temperatures for a particular season and locale. Marine heatwaves are caused by a variety of drivers.",
     "url": "https://en.wikipedia.org/wiki/Marine_heatwave?oldid=1370681277",
     "timestamp": "2026-08-22T14:01:49Z"
    }
   ]
  },
  "bottom_depth_m": {
   "face": {
    "kind": "scale",
    "face_of": null,
    "source": "record"
   },
   "wikipedia": [
    {
     "title": "Bathymetry",
     "revision": 1371785589,
     "license": "CC BY-SA 4.0",
     "extract": "Bathymetry is the study of underwater depth of ocean floors, river floors, or lake floors; the underwater equivalent to hypsometry or topography. The first recorded evidence of water depth measurements are from Ancient Egypt over 3000 years ago.",
     "url": "https://en.wikipedia.org/wiki/Bathymetry?oldid=1371785589",
     "timestamp": "2026-08-28T12:34:55Z"
    }
   ]
  },
  "phosphate": {
   "nerc": {
    "p01": "PHOSZZXX",
    "uri": "http://vocab.nerc.ac.uk/collection/P01/current/PHOSZZXX/",
    "pref": "Concentration of phosphate {PO43- CAS 14265-44-2} per unit volume of the water body [unknown phase]",
    "alt": "PO4",
    "definition": "Concentration of phosphate per unit volume of the water column. Phosphate may be expressed in terms of mass or quantity of substance.",
    "license": "CC BY 4.0",
    "s27": {
     "id": "CS026904",
     "uri": "http://vocab.nerc.ac.uk/collection/S27/current/CS026904/",
     "pref": "phosphate; Orthophosphates (PO4)",
     "definition": "Unavailable; Non displonible.",
     "same_as": [
      "http://purl.obolibrary.org/obo/CHEBI_18367",
      "https://chem.nlm.nih.gov/chemidplus/rn/14265-44-2"
     ],
     "chebi": "CHEBI:18367",
     "cas": "14265-44-2"
    },
    "p02": {
     "id": "PHOS",
     "uri": "http://vocab.nerc.ac.uk/collection/P02/current/PHOS/",
     "pref": "Phosphate concentration parameters in the water column",
     "definition": "Phosphate  concentration parameters (including statistical parameters such as standard deviation) in the water column",
     "same_as": []
    },
    "p06": {
     "id": "UPOX",
     "uri": "http://vocab.nerc.ac.uk/collection/P06/current/UPOX/",
     "pref": "Micromoles per litre",
     "definition": "Unavailable",
     "same_as": [
      "http://qudt.org/vocab/unit/MicroMOL-PER-L"
     ]
    }
   },
   "face": {
    "kind": "structure",
    "face_of": null,
    "source": "record"
   },
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     "chebi": "CHEBI:18367",
     "name": "phosphate(3−)",
     "formula": "O4P",
     "charge": -3,
     "mass": "94.970",
     "definition": "A phosphate ion that is the conjugate base of hydrogenphosphate.",
     "license": "CC BY 4.0",
     "url": "https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:18367",
     "role": "the_thing",
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     "mass_fraction": null,
     "source": "NVS S27 CS026904 owl:sameAs",
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     "drawn_by": "RDKit 2026.03.6 from the ChEBI molfile",
     "path": "keys/phosphate/structure.svg"
    }
   ],
   "wikipedia": [
    {
     "title": "Phosphate",
     "revision": 1376284687,
     "license": "CC BY-SA 4.0",
     "extract": "A phosphate is an anion, salt, functional group or ester derived from a phosphoric acid. It most commonly means orthophosphate, a derivative of orthophosphoric acid, a.k.a.",
     "url": "https://en.wikipedia.org/wiki/Phosphate?oldid=1376284687",
     "timestamp": "2026-09-23T05:47:12Z"
    }
   ]
  },
  "silicate": {
   "nerc": {
    "p01": "SLCAZZXX",
    "uri": "http://vocab.nerc.ac.uk/collection/P01/current/SLCAZZXX/",
    "pref": "Concentration of silicate {SiO44- CAS 17181-37-2} per unit volume of the water body [unknown phase]",
    "alt": "SiOx",
    "definition": "Concentration of silicate per unit volume of the water column. Silicate may be expressed in terms of mass or quantity of substance.",
    "license": "CC BY 4.0",
    "s27": {
     "id": "CS026903",
     "uri": "http://vocab.nerc.ac.uk/collection/S27/current/CS026903/",
     "pref": "Silicates; silicate",
     "definition": "Unavailable; Non disponible",
     "same_as": [
      "http://purl.obolibrary.org/obo/CHEBI_29241",
      "https://id.eaufrance.fr/par/1342",
      "https://chem.nlm.nih.gov/chemidplus/rn/17181-37-2"
     ],
     "chebi": "CHEBI:29241",
     "cas": "17181-37-2"
    },
    "p02": {
     "id": "SLCA",
     "uri": "http://vocab.nerc.ac.uk/collection/P02/current/SLCA/",
     "pref": "Silicate concentration parameters in the water column",
     "definition": "Silicate concentration parameters (including statistical parameters such as standard deviation) in the water column",
     "same_as": []
    },
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    {
     "title": "Silicic acid",
     "revision": 1357664652,
     "license": "CC BY-SA 4.0",
     "extract": "In chemistry, a silicic acid is any chemical compound containing the element silicon attached to oxide and hydroxyl groups, with the general formula [H2xSiOx+2]n or, equivalently, [SiOx(OH)4−2x]n. Orthosilicic acid is a representative example.",
     "url": "https://en.wikipedia.org/wiki/Silicic_acid?oldid=1357664652",
     "timestamp": "2026-06-03T23:05:58Z"
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    "pref": "Concentration of phosphate {PO43- CAS 14265-44-2} per unit volume of the water body [unknown phase]",
    "alt": "PO4",
    "definition": "Concentration of phosphate per unit volume of the water column. Phosphate may be expressed in terms of mass or quantity of substance.",
    "license": "CC BY 4.0",
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     "id": "CS026904",
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     "pref": "phosphate; Orthophosphates (PO4)",
     "definition": "Unavailable; Non displonible.",
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     "uri": "http://vocab.nerc.ac.uk/collection/P06/current/UPOX/",
     "pref": "Micromoles per litre",
     "definition": "Unavailable",
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     "name": "phosphate(3−)",
     "formula": "O4P",
     "charge": -3,
     "mass": "94.970",
     "definition": "A phosphate ion that is the conjugate base of hydrogenphosphate.",
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     "title": "Phosphate",
     "revision": 1376284687,
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     "extract": "A phosphate is an anion, salt, functional group or ester derived from a phosphoric acid. It most commonly means orthophosphate, a derivative of orthophosphoric acid, a.k.a.",
     "url": "https://en.wikipedia.org/wiki/Phosphate?oldid=1376284687",
     "timestamp": "2026-09-23T05:47:12Z"
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     "mass": "62.004",
     "definition": "A nitrogen oxoanion formed by loss of a proton from nitric acid. Principal species present at pH 7.3.",
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    {
     "title": "Nitrate",
     "revision": 1378622700,
     "license": "CC BY-SA 4.0",
     "extract": "Nitrate is a polyatomic ion with the chemical formula NO3−. Salts containing this ion are called nitrates.",
     "url": "https://en.wikipedia.org/wiki/Nitrate?oldid=1378622700",
     "timestamp": "2026-10-05T07:59:57Z"
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    {
     "title": "Upwelling",
     "revision": 1356825477,
     "license": "CC BY-SA 4.0",
     "extract": "Upwelling is an oceanographic phenomenon that involves wind-driven motion of dense, cooler, and usually nutrient-rich water from deep water towards the ocean surface. It replaces the warmer and usually nutrient-depleted surface water.",
     "url": "https://en.wikipedia.org/wiki/Upwelling?oldid=1356825477",
     "timestamp": "2026-05-30T01:44:08Z"
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    "pref": "Concentration of nitrite {NO2- CAS 14797-65-0} per unit volume of the water body [unknown phase]",
    "alt": "NO2",
    "definition": "Concentration of nitrite per unit volume of the water column. Nitrite may be expressed in terms of mass or quantity of substance.",
    "license": "CC BY 4.0",
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    {
     "title": "Nitrite",
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     "extract": "The nitrite ion has the chemical formula NO2–. Nitrite (mostly sodium nitrite) is widely used throughout chemical and pharmaceutical industries.",
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     "timestamp": "2026-09-25T08:09:05Z"
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     "title": "Nitrogen cycle",
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     "url": "https://en.wikipedia.org/wiki/Ammonium?oldid=1376536172",
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    },
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     "title": "Nitrogen cycle",
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     "url": "https://en.wikipedia.org/wiki/Nitrogen_cycle?oldid=1377769969",
     "timestamp": "2026-10-01T01:45:07Z"
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    "p01": "AMONZZXX",
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    "pref": "Concentration of ammonium {NH4+ CAS 14798-03-9} per unit volume of the water body [unknown phase]",
    "alt": "NH4",
    "definition": "Concentration of ammonium per unit volume of the water column. Ammonium may be expressed in terms of mass or quantity of substance.",
    "license": "CC BY 4.0",
    "s27": {
     "id": "CS026908",
     "uri": "http://vocab.nerc.ac.uk/collection/S27/current/CS026908/",
     "pref": "Ammonium; ammonium",
     "definition": "Non displonible.; A polyatomic ion with the molecular formula NH4+.",
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     "pref": "Ammonium and ammonia concentration parameters in water bodies",
     "definition": "Ammonium and ammonia concentration parameters (including statistical parameters such as standard deviation) in any body of fresh or salt water.",
     "same_as": []
    },
    "p06": {
     "id": "UPOX",
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     "pref": "Micromoles per litre",
     "definition": "Unavailable",
     "same_as": [
      "http://qudt.org/vocab/unit/MicroMOL-PER-L"
     ]
    }
   },
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    {
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     "name": "ammonium",
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     "mass": "18.039",
     "definition": "An onium cation obtained by protonation of ammonia.",
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     "definition": "An azane that consists of a single nitrogen atom covelently bonded to three hydrogen atoms.",
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     "source": "conjugate base of ammonium (NH4+ <=> NH3); the Berthelot reaction the method uses forms indophenol blue from the neutral species in alkaline solution, so the equilibrium partner is drawn beside it",
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    {
     "title": "Ammonium",
     "revision": 1376536172,
     "license": "CC BY-SA 4.0",
     "extract": "Ammonium is a modified form of ammonia that has an extra hydrogen atom. It is a positively charged (cationic) molecular ion with the chemical formula NH4+ or [NH4]+.",
     "url": "https://en.wikipedia.org/wiki/Ammonium?oldid=1376536172",
     "timestamp": "2026-09-24T19:29:27Z"
    },
    {
     "title": "Nitrogen cycle",
     "revision": 1377769969,
     "license": "CC BY-SA 4.0",
     "extract": "The nitrogen cycle is the biogeochemical cycle by which nitrogen is converted into multiple chemical forms as it circulates among atmospheric, terrestrial, and marine ecosystems. The conversion of nitrogen can be carried out through both biological and physical processes.",
     "url": "https://en.wikipedia.org/wiki/Nitrogen_cycle?oldid=1377769969",
     "timestamp": "2026-10-01T01:45:07Z"
    }
   ]
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    "alt": "pH",
    "definition": "Minus the log of the hydrogen ion concentration (moles per litre) in the water column.",
    "license": "CC BY 4.0",
    "s06": {
     "id": "S0600281",
     "uri": "http://vocab.nerc.ac.uk/collection/S06/current/S0600281/",
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    },
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     "uri": "http://vocab.nerc.ac.uk/collection/P02/current/ALKY/",
     "pref": "Alkalinity, acidity and pH of the water column",
     "definition": "Parameters quantifying the hydrogen ion concentration in water bodies",
     "same_as": []
    },
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     "id": "UUPH",
     "uri": "http://vocab.nerc.ac.uk/collection/P06/current/UUPH/",
     "pref": "pH units",
     "definition": "Unavailable",
     "same_as": []
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   },
   "face": {
    "kind": "scale",
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     "chebi": "CHEBI:15378",
     "name": "hydron",
     "formula": "H",
     "charge": 1,
     "mass": "1.008",
     "definition": "The general name for the hydrogen nucleus, to be used without regard to the hydrogen nuclear mass (either for hydrogen in its natural abundance or where it is not desired to distinguish between the isotopes).",
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     "url": "https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:15378",
     "role": "the_thing",
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   ],
   "wikipedia": [
    {
     "title": "Ocean acidification",
     "revision": 1372947827,
     "license": "CC BY-SA 4.0",
     "extract": "Ocean acidification is the ongoing decrease in the pH of the Earth's ocean. Between 1950 and 2020, the average pH of the ocean surface fell from approximately 8.15 to 8.05.",
     "url": "https://en.wikipedia.org/wiki/Ocean_acidification?oldid=1372947827",
     "timestamp": "2026-09-03T03:26:56Z"
    },
    {
     "title": "PH",
     "revision": 1378443470,
     "license": "CC BY-SA 4.0",
     "extract": "In chemistry, pH is a logarithmic scale used to specify the acidity or basicity of aqueous solutions. Acidic solutions are measured to have lower pH values than basic or alkaline solutions.",
     "url": "https://en.wikipedia.org/wiki/PH?oldid=1378443470",
     "timestamp": "2026-10-04T14:32:03Z"
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    "pref": "Concentration of total inorganic carbon {TCO2 CAS 7440-44-0} per unit mass of the water body [dissolved plus reactive particulate phase]",
    "alt": "TCO2/kg",
    "definition": "Concentration of dissolved inorganic carbon per unit mass of the water column. Solute may be expressed in terms of mass or quantity of substance.",
    "license": "CC BY 4.0",
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     "id": "CS002894",
     "uri": "http://vocab.nerc.ac.uk/collection/S27/current/CS002894/",
     "pref": "total inorganic carbon",
     "definition": "The sum of inorganic carbon species. The inorganic carbon species include carbon dioxide, carbonic acid, bicarbonate anion, and carbonate.",
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     "definition": "A one-carbon compound with formula CO2 in which the carbon is attached to each oxygen atom by a double bond. A colourless, odourless gas under normal conditions, it is produced during respiration by all animals, fungi and microorganisms that depend directly or indirectly on living or decaying plants for food.",
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     "title": "Alkalinity",
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     "license": "CC BY-SA 4.0",
     "extract": "Alkalinity (from Arabic: القلوية, romanized: al-qaly, lit. 'ashes of the saltwort') is the capacity of water to resist acidification.",
     "url": "https://en.wikipedia.org/wiki/Alkalinity?oldid=1377364008",
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     "constants": "Lueker, Dickson & Keeling (2000) carbonic-acid constants (opt_k_carbonic = 4)"
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     "uri": "http://vocab.nerc.ac.uk/collection/S06/current/S0600281/",
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     "definition": "The general name for the hydrogen nucleus, to be used without regard to the hydrogen nuclear mass (either for hydrogen in its natural abundance or where it is not desired to distinguish between the isotopes).",
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     "title": "Ocean acidification",
     "revision": 1372947827,
     "license": "CC BY-SA 4.0",
     "extract": "Ocean acidification is the ongoing decrease in the pH of the Earth's ocean. Between 1950 and 2020, the average pH of the ocean surface fell from approximately 8.15 to 8.05.",
     "url": "https://en.wikipedia.org/wiki/Ocean_acidification?oldid=1372947827",
     "timestamp": "2026-09-03T03:26:56Z"
    },
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     "title": "PH",
     "revision": 1378443470,
     "license": "CC BY-SA 4.0",
     "extract": "In chemistry, pH is a logarithmic scale used to specify the acidity or basicity of aqueous solutions. Acidic solutions are measured to have lower pH values than basic or alkaline solutions.",
     "url": "https://en.wikipedia.org/wiki/PH?oldid=1378443470",
     "timestamp": "2026-10-04T14:32:03Z"
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     "definition": "Unavailable",
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     "definition": "A one-carbon compound with formula CO2 in which the carbon is attached to each oxygen atom by a double bond. A colourless, odourless gas under normal conditions, it is produced during respiration by all animals, fungi and microorganisms that depend directly or indirectly on living or decaying plants for food.",
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    {
     "title": "Alkalinity",
     "revision": 1377364008,
     "license": "CC BY-SA 4.0",
     "extract": "Alkalinity (from Arabic: القلوية, romanized: al-qaly, lit. 'ashes of the saltwort') is the capacity of water to resist acidification.",
     "url": "https://en.wikipedia.org/wiki/Alkalinity?oldid=1377364008",
     "timestamp": "2026-09-29T02:33:04Z"
    }
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    "hco3": 95.1,
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      "dataset_key": "calcofi_bottle",
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      "p50": 2170.64,
      "units": "umol/kg",
      "n_values": 1999
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      "key": "alkalinity_rep1",
      "dataset_key": "calcofi_bottle",
      "measurement_type": "alkalinity_rep1",
      "p50": 2244.325,
      "units": "umol/kg",
      "n_values": 2084
     },
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      "key": "temperature",
      "dataset_key": "calcofi_bottle",
      "measurement_type": "temperature",
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      "units": "degC",
      "n_values": 884400
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      "key": "salinity",
      "dataset_key": "calcofi_bottle",
      "measurement_type": "salinity",
      "p50": 33.856,
      "units": "PSS-78",
      "n_values": 848013
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    },
    "inputs_note": "every value is the record's own observed p50 over the whole series, at surface pressure",
    "versions": {
     "PyCO2SYS": "1.8.3.4",
     "constants": "Lueker, Dickson & Keeling (2000) carbonic-acid constants (opt_k_carbonic = 4)"
    },
    "src": "PyCO2SYS 1.8.3.4 · Lueker, Dickson & Keeling (2000) carbonic-acid constants (opt_k_carbonic = 4), at the record's own series medians: DIC 2170.64 and alkalinity 2244.325 µmol/kg, 10.07 °C, practical salinity 33.856"
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   "nerc": {
    "p01": "TCO2MSXX",
    "uri": "http://vocab.nerc.ac.uk/collection/P01/current/TCO2MSXX/",
    "pref": "Concentration of total inorganic carbon {TCO2 CAS 7440-44-0} per unit mass of the water body [dissolved plus reactive particulate phase]",
    "alt": "TCO2/kg",
    "definition": "Concentration of dissolved inorganic carbon per unit mass of the water column. Solute may be expressed in terms of mass or quantity of substance.",
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      0.0,
      0.0164,
      0.9836
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    ],
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     "dic": {
      "key": "dic_rep1",
      "dataset_key": "calcofi_bottle",
      "measurement_type": "dic_rep1",
      "p50": 2170.64,
      "units": "umol/kg",
      "n_values": 1999
     },
     "alkalinity": {
      "key": "alkalinity_rep1",
      "dataset_key": "calcofi_bottle",
      "measurement_type": "alkalinity_rep1",
      "p50": 2244.325,
      "units": "umol/kg",
      "n_values": 2084
     },
     "temperature": {
      "key": "temperature",
      "dataset_key": "calcofi_bottle",
      "measurement_type": "temperature",
      "p50": 10.07,
      "units": "degC",
      "n_values": 884400
     },
     "salinity": {
      "key": "salinity",
      "dataset_key": "calcofi_bottle",
      "measurement_type": "salinity",
      "p50": 33.856,
      "units": "PSS-78",
      "n_values": 848013
     }
    },
    "inputs_note": "every value is the record's own observed p50 over the whole series, at surface pressure",
    "versions": {
     "PyCO2SYS": "1.8.3.4",
     "constants": "Lueker, Dickson & Keeling (2000) carbonic-acid constants (opt_k_carbonic = 4)"
    },
    "src": "PyCO2SYS 1.8.3.4 · Lueker, Dickson & Keeling (2000) carbonic-acid constants (opt_k_carbonic = 4), at the record's own series medians: DIC 2170.64 and alkalinity 2244.325 µmol/kg, 10.07 °C, practical salinity 33.856"
   }
  },
  "fluorescence_v": {
   "nerc_borrowed": {
    "p01": "CPHLZZXX",
    "uri": "http://vocab.nerc.ac.uk/collection/P01/current/CPHLZZXX/",
    "pref": "Concentration of chlorophyll-a {chl-a CAS 479-61-8} per unit volume of the water body [particulate >unknown phase]",
    "alt": "Chlorophyll-a",
    "definition": "The mass of all variants of chlorophyll-a per unit volume of the water column held in particles of any size.  Includes measurements made by instruments unable to resolve chorophyll-a types and the sum of HPLC chlorophyll-a types.",
    "license": "CC BY 4.0",
    "s27": {
     "id": "CS002896",
     "uri": "http://vocab.nerc.ac.uk/collection/S27/current/CS002896/",
     "pref": "chlorophyll-a; Chlorophylle a",
     "definition": "Non displonible.; A photosynthetic pigment common to all oxygenic photosynthetic organisms.",
     "same_as": [
      "https://chem.nlm.nih.gov/chemidplus/rn/479-61-8",
      "http://purl.obolibrary.org/obo/CHEBI_18230"
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     "chebi": "CHEBI:18230",
     "cas": "479-61-8"
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    "a05": {
     "id": "EV_CHLA",
     "uri": "http://vocab.nerc.ac.uk/collection/A05/current/EV_CHLA/",
     "pref": "Chlorophyll-a and fluorescence",
     "definition": "The amount of chlorophyll-a and chlorophyll fluorescence in seawater using water column measurements.",
     "same_as": []
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    "p02": {
     "id": "CPWC",
     "uri": "http://vocab.nerc.ac.uk/collection/P02/current/CPWC/",
     "pref": "Chlorophyll pigment concentrations in water bodies",
     "definition": "Includes all variants of chlorophyll expressed in terms of per unit volume, per unit area of any body of fresh or salt water, or as a relative colour index (e.g. PCI). Does not include data expressed per unit mass of SPM.",
     "same_as": [
      "http://vocab.nerc.ac.uk/collection/C47/current/IN5_2_1/"
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    "p06": {
     "id": "UMMC",
     "uri": "http://vocab.nerc.ac.uk/collection/P06/current/UMMC/",
     "pref": "Milligrams per cubic metre",
     "definition": "Unavailable",
     "same_as": [
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     ]
    },
    "borrowed_from": "chlorophyll_a"
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   "face": {
    "kind": "standsin",
    "face_of": "chlorophyll_a",
    "source": "record"
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     "name": "chlorophyll a",
     "formula": "C55H72MgN4O5",
     "charge": 0,
     "mass": "893.509",
     "definition": null,
     "license": "CC BY 4.0",
     "url": "https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:18230",
     "role": "the_thing",
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     "path": "keys/fluorescence_v/structure.svg"
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    {
     "chebi": "CHEBI:44898",
     "name": "pheophytin a",
     "formula": "C55H74N4O5",
     "charge": 0,
     "mass": "871.220",
     "definition": null,
     "license": "CC BY 4.0",
     "url": "https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:44898",
     "role": "method_product",
     "via": "registry",
     "mass_fraction": null,
     "source": "acidification (the same analysis) strips the magnesium and turns chlorophyll a into pheophytin a (Lorenzen 1967); calcofi.org's Chlorophyll-a & Phaeopigment Sampling section",
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    {
     "title": "Chlorophyll a",
     "revision": 1373717553,
     "license": "CC BY-SA 4.0",
     "extract": "Chlorophyll a is a specific form of chlorophyll used in oxygenic photosynthesis. It absorbs most energy from wavelengths of violet-blue and orange-red light.",
     "url": "https://en.wikipedia.org/wiki/Chlorophyll_a?oldid=1373717553",
     "timestamp": "2026-09-07T15:07:53Z"
    },
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     "title": "Phytoplankton",
     "revision": 1375954657,
     "license": "CC BY-SA 4.0",
     "extract": "Phytoplankton are the autotrophic (self-feeding) components of the plankton community and a key part of ocean and freshwater ecosystems. The name comes from Ancient Greek φυτόν (phutón), meaning \"plant\", and πλαγκτός (planktós), meaning \"drifter, wanderer, roamer\", and thus, \"plant drifter\".",
     "url": "https://en.wikipedia.org/wiki/Phytoplankton?oldid=1375954657",
     "timestamp": "2026-09-21T02:55:07Z"
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     "title": "Photosynthetically active radiation",
     "revision": 1372897979,
     "license": "CC BY-SA 4.0",
     "extract": "Photosynthetically active radiation (PAR) designates the spectral range of solar radiation from 400 to 700 nanometers that photosynthetic organisms are able to use in the process of photosynthesis. This spectral region corresponds more or less with the range of light visible to the human eye.",
     "url": "https://en.wikipedia.org/wiki/Photosynthetically_active_radiation?oldid=1372897979",
     "timestamp": "2026-09-02T21:30:35Z"
    },
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     "title": "Photic zone",
     "revision": 1378379550,
     "license": "CC BY-SA 4.0",
     "extract": "The photic zone is the uppermost layer of a body of water that receives sunlight, allowing phytoplankton to perform photosynthesis. It undergoes a series of physical, chemical, and biological processes that supply nutrients into the upper water column.",
     "url": "https://en.wikipedia.org/wiki/Photic_zone?oldid=1378379550",
     "timestamp": "2026-10-04T05:36:30Z"
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     "title": "Photosynthetically active radiation",
     "revision": 1372897979,
     "license": "CC BY-SA 4.0",
     "extract": "Photosynthetically active radiation (PAR) designates the spectral range of solar radiation from 400 to 700 nanometers that photosynthetic organisms are able to use in the process of photosynthesis. This spectral region corresponds more or less with the range of light visible to the human eye.",
     "url": "https://en.wikipedia.org/wiki/Photosynthetically_active_radiation?oldid=1372897979",
     "timestamp": "2026-09-02T21:30:35Z"
    },
    {
     "title": "Photic zone",
     "revision": 1378379550,
     "license": "CC BY-SA 4.0",
     "extract": "The photic zone is the uppermost layer of a body of water that receives sunlight, allowing phytoplankton to perform photosynthesis. It undergoes a series of physical, chemical, and biological processes that supply nutrients into the upper water column.",
     "url": "https://en.wikipedia.org/wiki/Photic_zone?oldid=1378379550",
     "timestamp": "2026-10-04T05:36:30Z"
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    "alt": "Chlorophyll-a",
    "definition": "The mass of all variants of chlorophyll-a per unit volume of the water column held in particles of any size.  Includes measurements made by instruments unable to resolve chorophyll-a types and the sum of HPLC chlorophyll-a types.",
    "license": "CC BY 4.0",
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     "definition": "Non displonible.; A photosynthetic pigment common to all oxygenic photosynthetic organisms.",
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     "pref": "Milligrams per cubic metre",
     "definition": "Unavailable",
     "same_as": [
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     "mass": "893.509",
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     "license": "CC BY 4.0",
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     "name": "pheophytin a",
     "formula": "C55H74N4O5",
     "charge": 0,
     "mass": "871.220",
     "definition": null,
     "license": "CC BY 4.0",
     "url": "https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:44898",
     "role": "method_product",
     "via": "registry",
     "mass_fraction": null,
     "source": "acidification (the same analysis) strips the magnesium and turns chlorophyll a into pheophytin a (Lorenzen 1967); calcofi.org's Chlorophyll-a & Phaeopigment Sampling section",
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   "wikipedia": [
    {
     "title": "Chlorophyll a",
     "revision": 1373717553,
     "license": "CC BY-SA 4.0",
     "extract": "Chlorophyll a is a specific form of chlorophyll used in oxygenic photosynthesis. It absorbs most energy from wavelengths of violet-blue and orange-red light.",
     "url": "https://en.wikipedia.org/wiki/Chlorophyll_a?oldid=1373717553",
     "timestamp": "2026-09-07T15:07:53Z"
    },
    {
     "title": "Phytoplankton",
     "revision": 1375954657,
     "license": "CC BY-SA 4.0",
     "extract": "Phytoplankton are the autotrophic (self-feeding) components of the plankton community and a key part of ocean and freshwater ecosystems. The name comes from Ancient Greek φυτόν (phutón), meaning \"plant\", and πλαγκτός (planktós), meaning \"drifter, wanderer, roamer\", and thus, \"plant drifter\".",
     "url": "https://en.wikipedia.org/wiki/Phytoplankton?oldid=1375954657",
     "timestamp": "2026-09-21T02:55:07Z"
    }
   ]
  },
  "est_chlorophyll_a_cruise_corr": {
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    "uri": "http://vocab.nerc.ac.uk/collection/P01/current/CPHLZZXX/",
    "pref": "Concentration of chlorophyll-a {chl-a CAS 479-61-8} per unit volume of the water body [particulate >unknown phase]",
    "alt": "Chlorophyll-a",
    "definition": "The mass of all variants of chlorophyll-a per unit volume of the water column held in particles of any size.  Includes measurements made by instruments unable to resolve chorophyll-a types and the sum of HPLC chlorophyll-a types.",
    "license": "CC BY 4.0",
    "s27": {
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     "uri": "http://vocab.nerc.ac.uk/collection/S27/current/CS002896/",
     "pref": "chlorophyll-a; Chlorophylle a",
     "definition": "Non displonible.; A photosynthetic pigment common to all oxygenic photosynthetic organisms.",
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      "http://purl.obolibrary.org/obo/CHEBI_18230"
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     "cas": "479-61-8"
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     "id": "EV_CHLA",
     "uri": "http://vocab.nerc.ac.uk/collection/A05/current/EV_CHLA/",
     "pref": "Chlorophyll-a and fluorescence",
     "definition": "The amount of chlorophyll-a and chlorophyll fluorescence in seawater using water column measurements.",
     "same_as": []
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    "p02": {
     "id": "CPWC",
     "uri": "http://vocab.nerc.ac.uk/collection/P02/current/CPWC/",
     "pref": "Chlorophyll pigment concentrations in water bodies",
     "definition": "Includes all variants of chlorophyll expressed in terms of per unit volume, per unit area of any body of fresh or salt water, or as a relative colour index (e.g. PCI). Does not include data expressed per unit mass of SPM.",
     "same_as": [
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     "id": "UMMC",
     "uri": "http://vocab.nerc.ac.uk/collection/P06/current/UMMC/",
     "pref": "Milligrams per cubic metre",
     "definition": "Unavailable",
     "same_as": [
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    },
    "borrowed_from": "chlorophyll_a"
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   "face": {
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    "face_of": "chlorophyll_a",
    "source": "record"
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     "name": "chlorophyll a",
     "formula": "C55H72MgN4O5",
     "charge": 0,
     "mass": "893.509",
     "definition": null,
     "license": "CC BY 4.0",
     "url": "https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:18230",
     "role": "the_thing",
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     "name": "pheophytin a",
     "formula": "C55H74N4O5",
     "charge": 0,
     "mass": "871.220",
     "definition": null,
     "license": "CC BY 4.0",
     "url": "https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:44898",
     "role": "method_product",
     "via": "registry",
     "mass_fraction": null,
     "source": "acidification (the same analysis) strips the magnesium and turns chlorophyll a into pheophytin a (Lorenzen 1967); calcofi.org's Chlorophyll-a & Phaeopigment Sampling section",
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   "wikipedia": [
    {
     "title": "Chlorophyll a",
     "revision": 1373717553,
     "license": "CC BY-SA 4.0",
     "extract": "Chlorophyll a is a specific form of chlorophyll used in oxygenic photosynthesis. It absorbs most energy from wavelengths of violet-blue and orange-red light.",
     "url": "https://en.wikipedia.org/wiki/Chlorophyll_a?oldid=1373717553",
     "timestamp": "2026-09-07T15:07:53Z"
    },
    {
     "title": "Phytoplankton",
     "revision": 1375954657,
     "license": "CC BY-SA 4.0",
     "extract": "Phytoplankton are the autotrophic (self-feeding) components of the plankton community and a key part of ocean and freshwater ecosystems. The name comes from Ancient Greek φυτόν (phutón), meaning \"plant\", and πλαγκτός (planktós), meaning \"drifter, wanderer, roamer\", and thus, \"plant drifter\".",
     "url": "https://en.wikipedia.org/wiki/Phytoplankton?oldid=1375954657",
     "timestamp": "2026-09-21T02:55:07Z"
    }
   ]
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    "p01": "CPHLZZXX",
    "uri": "http://vocab.nerc.ac.uk/collection/P01/current/CPHLZZXX/",
    "pref": "Concentration of chlorophyll-a {chl-a CAS 479-61-8} per unit volume of the water body [particulate >unknown phase]",
    "alt": "Chlorophyll-a",
    "definition": "The mass of all variants of chlorophyll-a per unit volume of the water column held in particles of any size.  Includes measurements made by instruments unable to resolve chorophyll-a types and the sum of HPLC chlorophyll-a types.",
    "license": "CC BY 4.0",
    "s27": {
     "id": "CS002896",
     "uri": "http://vocab.nerc.ac.uk/collection/S27/current/CS002896/",
     "pref": "chlorophyll-a; Chlorophylle a",
     "definition": "Non displonible.; A photosynthetic pigment common to all oxygenic photosynthetic organisms.",
     "same_as": [
      "https://chem.nlm.nih.gov/chemidplus/rn/479-61-8",
      "http://purl.obolibrary.org/obo/CHEBI_18230"
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     "chebi": "CHEBI:18230",
     "cas": "479-61-8"
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     "id": "EV_CHLA",
     "uri": "http://vocab.nerc.ac.uk/collection/A05/current/EV_CHLA/",
     "pref": "Chlorophyll-a and fluorescence",
     "definition": "The amount of chlorophyll-a and chlorophyll fluorescence in seawater using water column measurements.",
     "same_as": []
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     "id": "CPWC",
     "uri": "http://vocab.nerc.ac.uk/collection/P02/current/CPWC/",
     "pref": "Chlorophyll pigment concentrations in water bodies",
     "definition": "Includes all variants of chlorophyll expressed in terms of per unit volume, per unit area of any body of fresh or salt water, or as a relative colour index (e.g. PCI). Does not include data expressed per unit mass of SPM.",
     "same_as": [
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     "id": "UMMC",
     "uri": "http://vocab.nerc.ac.uk/collection/P06/current/UMMC/",
     "pref": "Milligrams per cubic metre",
     "definition": "Unavailable",
     "same_as": [
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     ]
    }
   },
   "face": {
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    "face_of": null,
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     "name": "chlorophyll a",
     "formula": "C55H72MgN4O5",
     "charge": 0,
     "mass": "893.509",
     "definition": null,
     "license": "CC BY 4.0",
     "url": "https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:18230",
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     "name": "pheophytin a",
     "formula": "C55H74N4O5",
     "charge": 0,
     "mass": "871.220",
     "definition": null,
     "license": "CC BY 4.0",
     "url": "https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:44898",
     "role": "method_product",
     "via": "registry",
     "mass_fraction": null,
     "source": "acidification (the same analysis) strips the magnesium and turns chlorophyll a into pheophytin a (Lorenzen 1967); calcofi.org's Chlorophyll-a & Phaeopigment Sampling section",
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     "path": "keys/chlorophyll_a/CHEBI_44898.svg"
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   ],
   "wikipedia": [
    {
     "title": "Chlorophyll a",
     "revision": 1373717553,
     "license": "CC BY-SA 4.0",
     "extract": "Chlorophyll a is a specific form of chlorophyll used in oxygenic photosynthesis. It absorbs most energy from wavelengths of violet-blue and orange-red light.",
     "url": "https://en.wikipedia.org/wiki/Chlorophyll_a?oldid=1373717553",
     "timestamp": "2026-09-07T15:07:53Z"
    },
    {
     "title": "Phytoplankton",
     "revision": 1375954657,
     "license": "CC BY-SA 4.0",
     "extract": "Phytoplankton are the autotrophic (self-feeding) components of the plankton community and a key part of ocean and freshwater ecosystems. The name comes from Ancient Greek φυτόν (phutón), meaning \"plant\", and πλαγκτός (planktós), meaning \"drifter, wanderer, roamer\", and thus, \"plant drifter\".",
     "url": "https://en.wikipedia.org/wiki/Phytoplankton?oldid=1375954657",
     "timestamp": "2026-09-21T02:55:07Z"
    }
   ]
  },
  "phaeopigment": {
   "nerc": {
    "p01": "PHAEZZXX",
    "uri": "http://vocab.nerc.ac.uk/collection/P01/current/PHAEZZXX/",
    "pref": "Concentration of phaeopigments {pheopigments} per unit volume of the water body [particulate >unknown phase]",
    "alt": "Phae_unspec",
    "definition": "Filtration and analysis protocols unspecified.",
    "license": "CC BY 4.0",
    "s27": {
     "id": "CS002902",
     "uri": "http://vocab.nerc.ac.uk/collection/S27/current/CS002902/",
     "pref": "phaeopigments; Phéopigments",
     "definition": "Non displonible.; A grouping term for pheophytins and pheophorbides; dominated by non-photosynthetic pigments issued from the breakdown of chlorophyll molecules; the only known exception is pheophytin-a which can also play a role as an electron acceptor in the photochemistry of plants and some bacteria.",
     "same_as": [],
     "chebi": null,
     "cas": null
    },
    "p02": {
     "id": "PHWC",
     "uri": "http://vocab.nerc.ac.uk/collection/P02/current/PHWC/",
     "pref": "Phaeopigment concentrations in the water column",
     "definition": "Includes all variants of phaeopigment (chlorophyll degradation products) expressed in terms of per unit volume or unit area of the water column.  Does not include data expressed per unit mass of SPM.",
     "same_as": []
    },
    "p06": {
     "id": "UMMC",
     "uri": "http://vocab.nerc.ac.uk/collection/P06/current/UMMC/",
     "pref": "Milligrams per cubic metre",
     "definition": "Unavailable",
     "same_as": [
      "http://qudt.org/vocab/unit/MilliGM-PER-M3"
     ]
    }
   },
   "face": {
    "kind": "composition",
    "face_of": null,
    "source": "record"
   },
   "structures": [
    {
     "chebi": "CHEBI:44898",
     "name": "pheophytin a",
     "formula": "C55H74N4O5",
     "charge": 0,
     "mass": "871.220",
     "definition": null,
     "license": "CC BY 4.0",
     "url": "https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:44898",
     "role": "one_of",
     "via": "registry",
     "mass_fraction": null,
     "source": "NERC P01 http://vocab.nerc.ac.uk/collection/P01/current/PHAEZZXX/ S27 CS002902 'phaeopigments' carries no ChEBI sameAs (a class, not one compound); pheophytin-a is the principal phaeopigment the acidification method measures (Lorenzen 1967)",
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     "revision": 1373850179,
     "license": "CC BY-SA 4.0",
     "extract": "Pheophytin or phaeophytin is a chemical compound that serves as the first electron carrier intermediate in the electron transfer pathway of Photosystem II in plants, and the type II photosynthetic reaction center found in purple bacteria. In both PS II and RC P870, light drives electrons from the reaction center through pheophytin, which then passes the electrons to a quinone (QA) in RC P870 and RC P680.",
     "url": "https://en.wikipedia.org/wiki/Pheophytin?oldid=1373850179",
     "timestamp": "2026-09-08T08:41:24Z"
    }
   ]
  },
  "btl_chlorophyll_a": {
   "nerc": {
    "p01": "CPHLZZXX",
    "uri": "http://vocab.nerc.ac.uk/collection/P01/current/CPHLZZXX/",
    "pref": "Concentration of chlorophyll-a {chl-a CAS 479-61-8} per unit volume of the water body [particulate >unknown phase]",
    "alt": "Chlorophyll-a",
    "definition": "The mass of all variants of chlorophyll-a per unit volume of the water column held in particles of any size.  Includes measurements made by instruments unable to resolve chorophyll-a types and the sum of HPLC chlorophyll-a types.",
    "license": "CC BY 4.0",
    "s27": {
     "id": "CS002896",
     "uri": "http://vocab.nerc.ac.uk/collection/S27/current/CS002896/",
     "pref": "chlorophyll-a; Chlorophylle a",
     "definition": "Non displonible.; A photosynthetic pigment common to all oxygenic photosynthetic organisms.",
     "same_as": [
      "https://chem.nlm.nih.gov/chemidplus/rn/479-61-8",
      "http://purl.obolibrary.org/obo/CHEBI_18230"
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     "chebi": "CHEBI:18230",
     "cas": "479-61-8"
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    "a05": {
     "id": "EV_CHLA",
     "uri": "http://vocab.nerc.ac.uk/collection/A05/current/EV_CHLA/",
     "pref": "Chlorophyll-a and fluorescence",
     "definition": "The amount of chlorophyll-a and chlorophyll fluorescence in seawater using water column measurements.",
     "same_as": []
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    "p02": {
     "id": "CPWC",
     "uri": "http://vocab.nerc.ac.uk/collection/P02/current/CPWC/",
     "pref": "Chlorophyll pigment concentrations in water bodies",
     "definition": "Includes all variants of chlorophyll expressed in terms of per unit volume, per unit area of any body of fresh or salt water, or as a relative colour index (e.g. PCI). Does not include data expressed per unit mass of SPM.",
     "same_as": [
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     "id": "UMMC",
     "uri": "http://vocab.nerc.ac.uk/collection/P06/current/UMMC/",
     "pref": "Milligrams per cubic metre",
     "definition": "Unavailable",
     "same_as": [
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     ]
    }
   },
   "face": {
    "kind": "structure",
    "face_of": null,
    "source": "record"
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     "name": "chlorophyll a",
     "formula": "C55H72MgN4O5",
     "charge": 0,
     "mass": "893.509",
     "definition": null,
     "license": "CC BY 4.0",
     "url": "https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:18230",
     "role": "the_thing",
     "via": "nerc_s27",
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     "name": "pheophytin a",
     "formula": "C55H74N4O5",
     "charge": 0,
     "mass": "871.220",
     "definition": null,
     "license": "CC BY 4.0",
     "url": "https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:44898",
     "role": "method_product",
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     "source": "acidification (the same analysis) strips the magnesium and turns chlorophyll a into pheophytin a (Lorenzen 1967); calcofi.org's Chlorophyll-a & Phaeopigment Sampling section",
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     "path": "keys/btl_chlorophyll_a/CHEBI_44898.svg"
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   "wikipedia": [
    {
     "title": "Chlorophyll a",
     "revision": 1373717553,
     "license": "CC BY-SA 4.0",
     "extract": "Chlorophyll a is a specific form of chlorophyll used in oxygenic photosynthesis. It absorbs most energy from wavelengths of violet-blue and orange-red light.",
     "url": "https://en.wikipedia.org/wiki/Chlorophyll_a?oldid=1373717553",
     "timestamp": "2026-09-07T15:07:53Z"
    },
    {
     "title": "Phytoplankton",
     "revision": 1375954657,
     "license": "CC BY-SA 4.0",
     "extract": "Phytoplankton are the autotrophic (self-feeding) components of the plankton community and a key part of ocean and freshwater ecosystems. The name comes from Ancient Greek φυτόν (phutón), meaning \"plant\", and πλαγκτός (planktós), meaning \"drifter, wanderer, roamer\", and thus, \"plant drifter\".",
     "url": "https://en.wikipedia.org/wiki/Phytoplankton?oldid=1375954657",
     "timestamp": "2026-09-21T02:55:07Z"
    }
   ]
  },
  "btl_phaeopigment": {
   "nerc": {
    "p01": "PHAEZZXX",
    "uri": "http://vocab.nerc.ac.uk/collection/P01/current/PHAEZZXX/",
    "pref": "Concentration of phaeopigments {pheopigments} per unit volume of the water body [particulate >unknown phase]",
    "alt": "Phae_unspec",
    "definition": "Filtration and analysis protocols unspecified.",
    "license": "CC BY 4.0",
    "s27": {
     "id": "CS002902",
     "uri": "http://vocab.nerc.ac.uk/collection/S27/current/CS002902/",
     "pref": "phaeopigments; Phéopigments",
     "definition": "Non displonible.; A grouping term for pheophytins and pheophorbides; dominated by non-photosynthetic pigments issued from the breakdown of chlorophyll molecules; the only known exception is pheophytin-a which can also play a role as an electron acceptor in the photochemistry of plants and some bacteria.",
     "same_as": [],
     "chebi": null,
     "cas": null
    },
    "p02": {
     "id": "PHWC",
     "uri": "http://vocab.nerc.ac.uk/collection/P02/current/PHWC/",
     "pref": "Phaeopigment concentrations in the water column",
     "definition": "Includes all variants of phaeopigment (chlorophyll degradation products) expressed in terms of per unit volume or unit area of the water column.  Does not include data expressed per unit mass of SPM.",
     "same_as": []
    },
    "p06": {
     "id": "UMMC",
     "uri": "http://vocab.nerc.ac.uk/collection/P06/current/UMMC/",
     "pref": "Milligrams per cubic metre",
     "definition": "Unavailable",
     "same_as": [
      "http://qudt.org/vocab/unit/MilliGM-PER-M3"
     ]
    }
   },
   "face": {
    "kind": "composition",
    "face_of": null,
    "source": "record"
   },
   "structures": [
    {
     "chebi": "CHEBI:44898",
     "name": "pheophytin a",
     "formula": "C55H74N4O5",
     "charge": 0,
     "mass": "871.220",
     "definition": null,
     "license": "CC BY 4.0",
     "url": "https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:44898",
     "role": "one_of",
     "via": "registry",
     "mass_fraction": null,
     "source": "NERC P01 http://vocab.nerc.ac.uk/collection/P01/current/PHAEZZXX/ S27 CS002902 'phaeopigments' carries no ChEBI sameAs (a class, not one compound); pheophytin-a is the principal phaeopigment the acidification method measures (Lorenzen 1967)",
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     "path": "keys/btl_phaeopigment/structure.svg"
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   ],
   "wikipedia": [
    {
     "title": "Pheophytin",
     "revision": 1373850179,
     "license": "CC BY-SA 4.0",
     "extract": "Pheophytin or phaeophytin is a chemical compound that serves as the first electron carrier intermediate in the electron transfer pathway of Photosystem II in plants, and the type II photosynthetic reaction center found in purple bacteria. In both PS II and RC P870, light drives electrons from the reaction center through pheophytin, which then passes the electrons to a quinone (QA) in RC P870 and RC P680.",
     "url": "https://en.wikipedia.org/wiki/Pheophytin?oldid=1373850179",
     "timestamp": "2026-09-08T08:41:24Z"
    }
   ]
  },
  "chl_fluor": {
   "nerc_borrowed": {
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    "uri": "http://vocab.nerc.ac.uk/collection/P01/current/CPHLZZXX/",
    "pref": "Concentration of chlorophyll-a {chl-a CAS 479-61-8} per unit volume of the water body [particulate >unknown phase]",
    "alt": "Chlorophyll-a",
    "definition": "The mass of all variants of chlorophyll-a per unit volume of the water column held in particles of any size.  Includes measurements made by instruments unable to resolve chorophyll-a types and the sum of HPLC chlorophyll-a types.",
    "license": "CC BY 4.0",
    "s27": {
     "id": "CS002896",
     "uri": "http://vocab.nerc.ac.uk/collection/S27/current/CS002896/",
     "pref": "chlorophyll-a; Chlorophylle a",
     "definition": "Non displonible.; A photosynthetic pigment common to all oxygenic photosynthetic organisms.",
     "same_as": [
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      "http://purl.obolibrary.org/obo/CHEBI_18230"
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     "chebi": "CHEBI:18230",
     "cas": "479-61-8"
    },
    "a05": {
     "id": "EV_CHLA",
     "uri": "http://vocab.nerc.ac.uk/collection/A05/current/EV_CHLA/",
     "pref": "Chlorophyll-a and fluorescence",
     "definition": "The amount of chlorophyll-a and chlorophyll fluorescence in seawater using water column measurements.",
     "same_as": []
    },
    "p02": {
     "id": "CPWC",
     "uri": "http://vocab.nerc.ac.uk/collection/P02/current/CPWC/",
     "pref": "Chlorophyll pigment concentrations in water bodies",
     "definition": "Includes all variants of chlorophyll expressed in terms of per unit volume, per unit area of any body of fresh or salt water, or as a relative colour index (e.g. PCI). Does not include data expressed per unit mass of SPM.",
     "same_as": [
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    "p06": {
     "id": "UMMC",
     "uri": "http://vocab.nerc.ac.uk/collection/P06/current/UMMC/",
     "pref": "Milligrams per cubic metre",
     "definition": "Unavailable",
     "same_as": [
      "http://qudt.org/vocab/unit/MilliGM-PER-M3"
     ]
    },
    "borrowed_from": "chlorophyll_a"
   },
   "face": {
    "kind": "standsin",
    "face_of": "chlorophyll_a",
    "source": "record"
   },
   "structures": [
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     "chebi": "CHEBI:18230",
     "name": "chlorophyll a",
     "formula": "C55H72MgN4O5",
     "charge": 0,
     "mass": "893.509",
     "definition": null,
     "license": "CC BY 4.0",
     "url": "https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:18230",
     "role": "the_thing",
     "via": "nerc_s27",
     "mass_fraction": null,
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     "name": "pheophytin a",
     "formula": "C55H74N4O5",
     "charge": 0,
     "mass": "871.220",
     "definition": null,
     "license": "CC BY 4.0",
     "url": "https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:44898",
     "role": "method_product",
     "via": "registry",
     "mass_fraction": null,
     "source": "acidification (the same analysis) strips the magnesium and turns chlorophyll a into pheophytin a (Lorenzen 1967); calcofi.org's Chlorophyll-a & Phaeopigment Sampling section",
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   "wikipedia": [
    {
     "title": "Chlorophyll a",
     "revision": 1373717553,
     "license": "CC BY-SA 4.0",
     "extract": "Chlorophyll a is a specific form of chlorophyll used in oxygenic photosynthesis. It absorbs most energy from wavelengths of violet-blue and orange-red light.",
     "url": "https://en.wikipedia.org/wiki/Chlorophyll_a?oldid=1373717553",
     "timestamp": "2026-09-07T15:07:53Z"
    },
    {
     "title": "Phytoplankton",
     "revision": 1375954657,
     "license": "CC BY-SA 4.0",
     "extract": "Phytoplankton are the autotrophic (self-feeding) components of the plankton community and a key part of ocean and freshwater ecosystems. The name comes from Ancient Greek φυτόν (phutón), meaning \"plant\", and πλαγκτός (planktós), meaning \"drifter, wanderer, roamer\", and thus, \"plant drifter\".",
     "url": "https://en.wikipedia.org/wiki/Phytoplankton?oldid=1375954657",
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    "license": "CC BY 4.0",
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     "definition": "",
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     "name": "carbonate",
     "formula": "CO3",
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     "license": "CC BY 4.0",
     "url": "https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:41609",
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   "wikipedia": [
    {
     "title": "Primary production",
     "revision": 1374882454,
     "license": "CC BY-SA 4.0",
     "extract": "In ecology, primary production is the synthesis of organic compounds from atmospheric or aqueous carbon dioxide. It principally occurs through the process of photosynthesis, which uses light as its source of energy, but it also occurs through chemosynthesis, which uses the oxidation or reduction of inorganic chemical compounds as its source of energy.",
     "url": "https://en.wikipedia.org/wiki/Primary_production?oldid=1374882454",
     "timestamp": "2026-09-14T16:37:56Z"
    }
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    {
     "title": "Photosynthetically active radiation",
     "revision": 1372897979,
     "license": "CC BY-SA 4.0",
     "extract": "Photosynthetically active radiation (PAR) designates the spectral range of solar radiation from 400 to 700 nanometers that photosynthetic organisms are able to use in the process of photosynthesis. This spectral region corresponds more or less with the range of light visible to the human eye.",
     "url": "https://en.wikipedia.org/wiki/Photosynthetically_active_radiation?oldid=1372897979",
     "timestamp": "2026-09-02T21:30:35Z"
    },
    {
     "title": "Photic zone",
     "revision": 1378379550,
     "license": "CC BY-SA 4.0",
     "extract": "The photic zone is the uppermost layer of a body of water that receives sunlight, allowing phytoplankton to perform photosynthesis. It undergoes a series of physical, chemical, and biological processes that supply nutrients into the upper water column.",
     "url": "https://en.wikipedia.org/wiki/Photic_zone?oldid=1378379550",
     "timestamp": "2026-10-04T05:36:30Z"
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     "pref": "Milligrams per cubic metre",
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     "name": "pheophytin a",
     "formula": "C55H74N4O5",
     "charge": 0,
     "mass": "871.220",
     "definition": null,
     "license": "CC BY 4.0",
     "url": "https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:44898",
     "role": "method_product",
     "via": "registry",
     "mass_fraction": null,
     "source": "acidification (the same analysis) strips the magnesium and turns chlorophyll a into pheophytin a (Lorenzen 1967); calcofi.org's Chlorophyll-a & Phaeopigment Sampling section",
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    {
     "title": "Deep chlorophyll maximum",
     "revision": 1374126571,
     "license": "CC BY-SA 4.0",
     "extract": "The deep chlorophyll maximum (DCM), also called the subsurface chlorophyll maximum, is the region below the surface of water with the maximum concentration of chlorophyll. The DCM generally exists at the same depth as the nutricline, the region of the ocean where the greatest change in the nutrient concentration occurs with depth.",
     "url": "https://en.wikipedia.org/wiki/Deep_chlorophyll_maximum?oldid=1374126571",
     "timestamp": "2026-09-10T00:48:36Z"
    },
    {
     "title": "Chlorophyll a",
     "revision": 1373717553,
     "license": "CC BY-SA 4.0",
     "extract": "Chlorophyll a is a specific form of chlorophyll used in oxygenic photosynthesis. It absorbs most energy from wavelengths of violet-blue and orange-red light.",
     "url": "https://en.wikipedia.org/wiki/Chlorophyll_a?oldid=1373717553",
     "timestamp": "2026-09-07T15:07:53Z"
    }
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   "wikipedia": [
    {
     "title": "Deep chlorophyll maximum",
     "revision": 1374126571,
     "license": "CC BY-SA 4.0",
     "extract": "The deep chlorophyll maximum (DCM), also called the subsurface chlorophyll maximum, is the region below the surface of water with the maximum concentration of chlorophyll. The DCM generally exists at the same depth as the nutricline, the region of the ocean where the greatest change in the nutrient concentration occurs with depth.",
     "url": "https://en.wikipedia.org/wiki/Deep_chlorophyll_maximum?oldid=1374126571",
     "timestamp": "2026-09-10T00:48:36Z"
    },
    {
     "title": "Chlorophyll a",
     "revision": 1373717553,
     "license": "CC BY-SA 4.0",
     "extract": "Chlorophyll a is a specific form of chlorophyll used in oxygenic photosynthesis. It absorbs most energy from wavelengths of violet-blue and orange-red light.",
     "url": "https://en.wikipedia.org/wiki/Chlorophyll_a?oldid=1373717553",
     "timestamp": "2026-09-07T15:07:53Z"
    }
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    "pref": "Concentration of chlorophyll-a {chl-a CAS 479-61-8} per unit volume of the water body [particulate >unknown phase]",
    "alt": "Chlorophyll-a",
    "definition": "The mass of all variants of chlorophyll-a per unit volume of the water column held in particles of any size.  Includes measurements made by instruments unable to resolve chorophyll-a types and the sum of HPLC chlorophyll-a types.",
    "license": "CC BY 4.0",
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     "uri": "http://vocab.nerc.ac.uk/collection/S27/current/CS002896/",
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     "definition": "Non displonible.; A photosynthetic pigment common to all oxygenic photosynthetic organisms.",
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     "uri": "http://vocab.nerc.ac.uk/collection/A05/current/EV_CHLA/",
     "pref": "Chlorophyll-a and fluorescence",
     "definition": "The amount of chlorophyll-a and chlorophyll fluorescence in seawater using water column measurements.",
     "same_as": []
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     "uri": "http://vocab.nerc.ac.uk/collection/P02/current/CPWC/",
     "pref": "Chlorophyll pigment concentrations in water bodies",
     "definition": "Includes all variants of chlorophyll expressed in terms of per unit volume, per unit area of any body of fresh or salt water, or as a relative colour index (e.g. PCI). Does not include data expressed per unit mass of SPM.",
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     "pref": "Milligrams per cubic metre",
     "definition": "Unavailable",
     "same_as": [
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     "chebi": "CHEBI:44898",
     "name": "pheophytin a",
     "formula": "C55H74N4O5",
     "charge": 0,
     "mass": "871.220",
     "definition": null,
     "license": "CC BY 4.0",
     "url": "https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:44898",
     "role": "method_product",
     "via": "registry",
     "mass_fraction": null,
     "source": "acidification (the same analysis) strips the magnesium and turns chlorophyll a into pheophytin a (Lorenzen 1967); calcofi.org's Chlorophyll-a & Phaeopigment Sampling section",
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   "wikipedia": [
    {
     "title": "Chlorophyll a",
     "revision": 1373717553,
     "license": "CC BY-SA 4.0",
     "extract": "Chlorophyll a is a specific form of chlorophyll used in oxygenic photosynthesis. It absorbs most energy from wavelengths of violet-blue and orange-red light.",
     "url": "https://en.wikipedia.org/wiki/Chlorophyll_a?oldid=1373717553",
     "timestamp": "2026-09-07T15:07:53Z"
    },
    {
     "title": "Primary production",
     "revision": 1374882454,
     "license": "CC BY-SA 4.0",
     "extract": "In ecology, primary production is the synthesis of organic compounds from atmospheric or aqueous carbon dioxide. It principally occurs through the process of photosynthesis, which uses light as its source of energy, but it also occurs through chemosynthesis, which uses the oxidation or reduction of inorganic chemical compounds as its source of energy.",
     "url": "https://en.wikipedia.org/wiki/Primary_production?oldid=1374882454",
     "timestamp": "2026-09-14T16:37:56Z"
    }
   ]
  },
  "chl_integrated_depth": {
   "face": {
    "kind": "scale",
    "face_of": null,
    "source": "record"
   },
   "wikipedia": [
    {
     "title": "Deep chlorophyll maximum",
     "revision": 1374126571,
     "license": "CC BY-SA 4.0",
     "extract": "The deep chlorophyll maximum (DCM), also called the subsurface chlorophyll maximum, is the region below the surface of water with the maximum concentration of chlorophyll. The DCM generally exists at the same depth as the nutricline, the region of the ocean where the greatest change in the nutrient concentration occurs with depth.",
     "url": "https://en.wikipedia.org/wiki/Deep_chlorophyll_maximum?oldid=1374126571",
     "timestamp": "2026-09-10T00:48:36Z"
    }
   ]
  },
  "atm_pressure_mb": {
   "face": {
    "kind": "scale",
    "face_of": null,
    "source": "record"
   },
   "wikipedia": [
    {
     "title": "North Pacific High",
     "revision": 1268612693,
     "license": "CC BY-SA 4.0",
     "extract": "The North Pacific High is a semi-permanent, subtropical anticyclone located in the northeastern portion of the Pacific Ocean, located northeast of Hawaii and west of California. It is part of the great belt of anticyclones known as the subtropical ridge.",
     "url": "https://en.wikipedia.org/wiki/North_Pacific_High?oldid=1268612693",
     "timestamp": "2025-01-10T17:11:33Z"
    }
   ]
  },
  "wind_dir_deg": {
   "face": {
    "kind": "scale",
    "face_of": null,
    "source": "record"
   },
   "wikipedia": [
    {
     "title": "Wind direction",
     "revision": 1293672713,
     "license": "CC BY-SA 4.0",
     "extract": "Wind direction is generally reported by the direction from which the wind originates. For example, a north or northerly wind blows from the north to the south; the exceptions are onshore winds and offshore winds.",
     "url": "https://en.wikipedia.org/wiki/Wind_direction?oldid=1293672713",
     "timestamp": "2025-06-03T02:28:48Z"
    },
    {
     "title": "Ekman transport",
     "revision": 1375084512,
     "license": "CC BY-SA 4.0",
     "extract": "Ekman transport is part of Ekman motion theory, first investigated in 1902 by Vagn Walfrid Ekman. Winds are the main source of energy for ocean circulation, and Ekman transport is a component of wind-driven ocean current.",
     "url": "https://en.wikipedia.org/wiki/Ekman_transport?oldid=1375084512",
     "timestamp": "2026-09-15T19:46:15Z"
    }
   ]
  },
  "wind_speed_ms": {
   "face": {
    "kind": "scale",
    "face_of": null,
    "source": "record"
   },
   "wikipedia": [
    {
     "title": "Upwelling",
     "revision": 1356825477,
     "license": "CC BY-SA 4.0",
     "extract": "Upwelling is an oceanographic phenomenon that involves wind-driven motion of dense, cooler, and usually nutrient-rich water from deep water towards the ocean surface. It replaces the warmer and usually nutrient-depleted surface water.",
     "url": "https://en.wikipedia.org/wiki/Upwelling?oldid=1356825477",
     "timestamp": "2026-05-30T01:44:08Z"
    },
    {
     "title": "Beaufort scale",
     "revision": 1378037123,
     "license": "CC BY-SA 4.0",
     "extract": "The Beaufort scale is an empirical measure that relates wind speed to observed conditions at sea or on land. Its full name is the Beaufort wind force scale.",
     "url": "https://en.wikipedia.org/wiki/Beaufort_scale?oldid=1378037123",
     "timestamp": "2026-10-02T15:57:45Z"
    }
   ]
  },
  "air_temp_c": {
   "nerc_borrowed": {
    "p01": "TEMPPR01",
    "uri": "http://vocab.nerc.ac.uk/collection/P01/current/TEMPPR01/",
    "pref": "Temperature of the water body",
    "alt": "Temp",
    "definition": "The degree of hotness of the water column expressed against a standard scale.  Includes both IPTS-68 and ITS-90 scales.",
    "license": "CC BY 4.0",
    "s06": {
     "id": "S0600082",
     "uri": "http://vocab.nerc.ac.uk/collection/S06/current/S0600082/",
     "pref": "Temperature; température",
     "definition": "Degré de chaleur d'un objet, d'une matrice, d'un environnement, exprimé selon une échelle standard.; The degree of hotness of an object, a measurement matrix, an environment, expressed against a standard scale.",
     "same_as": [
      "http://qudt.org/vocab/quantitykind/Temperature"
     ]
    },
    "a05": {
     "id": "EV_SEATEMP",
     "uri": "http://vocab.nerc.ac.uk/collection/A05/current/EV_SEATEMP/",
     "pref": "Temperature",
     "definition": "The temperature of seawater expressed against the International Temperature Scale 1990 (ITS-90) standard.",
     "same_as": [
      "http://vocab.nerc.ac.uk/collection/OD1/current/SEATEMP/"
     ]
    },
    "p02": {
     "id": "TEMP",
     "uri": "http://vocab.nerc.ac.uk/collection/P02/current/TEMP/",
     "pref": "Temperature of the water column",
     "definition": "Temperature parameters in any body of water at any point between the bed and the atmosphere excluding the top few microns sampled by radiometers known as the skin",
     "same_as": [
      "https://www.nodc.noaa.gov/cgi-bin/OAS/prd/datatype/details/373",
      "http://vocab.nerc.ac.uk/collection/OD1/current/SEATEMP/"
     ]
    },
    "p06": {
     "id": "UPAA",
     "uri": "http://vocab.nerc.ac.uk/collection/P06/current/UPAA/",
     "pref": "Degrees Celsius",
     "definition": "Unavailable",
     "same_as": [
      "http://qudt.org/vocab/unit/DEG_C",
      "http://dbpedia.org/resource/Celsius",
      "http://onto.nerc.ac.uk/CAST/153"
     ]
    },
    "borrowed_from": "temperature"
   },
   "face": {
    "kind": "standsin",
    "face_of": "temperature",
    "source": "record"
   },
   "wikipedia": [
    {
     "title": "Atmospheric temperature",
     "revision": 1374018382,
     "license": "CC BY-SA 4.0",
     "extract": "Atmospheric temperature is a measure of temperature at different levels of the Earth's atmosphere. It is governed by many factors, including incoming solar radiation, humidity, and altitude.",
     "url": "https://en.wikipedia.org/wiki/Atmospheric_temperature?oldid=1374018382",
     "timestamp": "2026-09-09T09:05:50Z"
    }
   ]
  },
  "rel_humidity_pct": {
   "face": {
    "kind": "scale",
    "face_of": null,
    "source": "record"
   },
   "wikipedia": [
    {
     "title": "Humidity",
     "revision": 1373534756,
     "license": "CC BY-SA 4.0",
     "extract": "Humidity is the concentration of water vapor present in the air. Water vapor, the gaseous state of water, is generally invisible to the naked eye.",
     "url": "https://en.wikipedia.org/wiki/Humidity?oldid=1373534756",
     "timestamp": "2026-09-06T14:40:11Z"
    }
   ]
  },
  "long_wave_rad": {
   "face": {
    "kind": "scale",
    "face_of": null,
    "source": "record"
   },
   "wikipedia": [
    {
     "title": "Heat flux",
     "revision": 1336610285,
     "license": "CC BY-SA 4.0",
     "extract": "In physics and engineering, heat flux or thermal flux, sometimes also referred to as heat flux density, heat-flow density or heat-flow rate intensity, is a flow of energy per unit area per unit time. Its SI units are watts per square metre (W/m2).",
     "url": "https://en.wikipedia.org/wiki/Heat_flux?oldid=1336610285",
     "timestamp": "2026-02-04T19:37:56Z"
    },
    {
     "title": "Solar irradiance",
     "revision": 1377433532,
     "license": "CC BY-SA 4.0",
     "extract": "Solar irradiance is the power per unit area received from the Sun in the form of electromagnetic radiation in the wavelength range of the measuring instrument. Solar irradiance is measured in watts per square metre (W/m2) in SI units.",
     "url": "https://en.wikipedia.org/wiki/Solar_irradiance?oldid=1377433532",
     "timestamp": "2026-09-29T10:25:23Z"
    }
   ]
  },
  "short_wave_rad": {
   "face": {
    "kind": "scale",
    "face_of": null,
    "source": "record"
   },
   "wikipedia": [
    {
     "title": "Heat flux",
     "revision": 1336610285,
     "license": "CC BY-SA 4.0",
     "extract": "In physics and engineering, heat flux or thermal flux, sometimes also referred to as heat flux density, heat-flow density or heat-flow rate intensity, is a flow of energy per unit area per unit time. Its SI units are watts per square metre (W/m2).",
     "url": "https://en.wikipedia.org/wiki/Heat_flux?oldid=1336610285",
     "timestamp": "2026-02-04T19:37:56Z"
    },
    {
     "title": "Solar irradiance",
     "revision": 1377433532,
     "license": "CC BY-SA 4.0",
     "extract": "Solar irradiance is the power per unit area received from the Sun in the form of electromagnetic radiation in the wavelength range of the measuring instrument. Solar irradiance is measured in watts per square metre (W/m2) in SI units.",
     "url": "https://en.wikipedia.org/wiki/Solar_irradiance?oldid=1377433532",
     "timestamp": "2026-09-29T10:25:23Z"
    }
   ]
  }
 }
}